Fantasmapocalypse

Generally speaking, grad programs look at your most recent coursework first, starting with your grad degree and privileging your major coursework over electives and non major work.... and your undergrad maybe not mattering much at all.
IMO your MA speaks to your ability now in addition to your publications. If you want to improve your CV, I would suggest funding or publications, the more prestigious (nationally known journals or the major journals of your field) the better. Your LOR should also speak to your current work ethic and research skills. If you are worried about your undergrad still, you can speak to it in your SOP but I think you are okay.

You're definitely in good shape. I would echo what Fantasmapocalypse said in that you should try to get some posters/publications in before you apply. You didn't specify what type of psych program (clinical or purely experimental such as developmental based on your interests), but clinical is a bit more competitive. An MA is often good if you are unsure if you are ready for grad school and want to test the waters or if you have to make up for a poor undergrad GPA (which is not your case). If anything, you would best be suited by taking a position as a lab manager/research coordinator for a year or 2 between applications if it doesn't work out next application season (get paid instead of paying for courses that will most likely not transfer). Overall, if you can make a big push for a few research products ASAP before you apply then you should be in good shape. Just make sure that you look for programs with a good research fit, ask for strong letters of recommendation, write a solid statement of purpose (SOP), and try not to restrict yourself geographically as to not limit viable research match options. 

Yes, that's generally very true. It's risky to do MA in countries other than the U.S. and Canada, and this includes "Western" institutions (and even other English-speaking countries like Australia or New Zealand).  
Nonetheless, as far as I know, this is an uncommon practice in area studies (e.g., East Asian studies; and note that I'm not saying this is a "common" practice). So, for example, if you want to apply for East Asian studies with the focus on Japan and did BA in the U.S. or Canada, doing Masters in Japan isn't a bad idea. However, if you want to go into a traditional department like history, anthropology, or any other non-Area studies major it can be quite risky and should think about it twice. 

I'd have to agree. I've done a lot of informational interviewing this application season and the standard response I have received about going outside the USA is that a MA degree from an Asian University just doesn't stand up in the US. Europe is a bit better but you will be lacking a network if you decide to come back to the USA for work. If those factors are not major in your decision making process ie: not intending to come back to the USA, specific program interests or financial reasons etc... then go for it!

Ok, not little

All too often people post here asking what their chances are at this and that school. I completetly understand their desire to know the answer. However, I also understand why some other people get somewhat annoyed by this question. Indeed, it is very hard to tell what somebody's chances are at certain schools, even if you know their stats and other details like a number of publications they have. That is why I decided to write this post. I will explain how, in my opinion, one can estimate one's chances and choose programs correctly. I hope that other people experienced in application process will correct me if I am wrong and add their advice. And may be, if moderators consider this post useful, they will be able to make it always stay on top of this board - if it is possible on this forum.

First of all, if you want to know whether your stats (GRE, GPA, TOEFL score) are good enough for you to be accepted to certain schools - there is one easy way to find the answer. Most schools post stats of students they have accepted, like on this page here. So try to find this info on websites of schools you are planning to apply to and if you can't find it, ask graduate secretaries/coordanators if such a page exists and if not, where you can find those stats. Remember that if your stats are low but not abysmal, that does not mean that your chances are low. It does not (always) go like - lower the grades, lower the chances (unless they are above some bare minimum) and vice versa. Because...

Second of all, even with the best stats, numerous publications, brilliant letters of reference, etc. you may not be accepted to a school if you have not chosen a program wisely. Because the most important thing in this game is fit. If a program thinks they are a bad fit for you, they will not admit you, however wonderful your application is. So you should apply only to schools that fit well your research interests and experience. How can you find schools with a good fit? First, of course, you schould know what your research interests are. If you know that, visit as many websites of programs in your field as you can find - and read about them, very carefully. Where can you find a list of programs? Well, browse the internet. When I was applying last year, I came across a biiiiiig list of programs in my field (it was not a ranking, just a list) and I spent a lot of time just going through all these program's websites. If you don't find such a list, just find some rankings. Not in order to find out what programs are the best in your field (many people don't believe in rankings anyway) but just to see what programs are out there. So, you read about the programs on their websites. From the way these programs are described you should get an idea if you would be interested in studying there or not. When I was choosing programs to apply to, I first used the list that I had found to make a shorter list of programs with a very general fit. Then, as I knew that I would not be able to attent a program without funding, I looked through this new shorter list looking for programs that were offering funding. As you can imagine, the list became even shorter after that Then I started to read about faculty in the programs from the last list, looking for professors who could potentially become my advisors. Then I contacted these professors, telling them about my research project, asking about their opinion. When some replied and I saw that they liked my ideas, I asked them if they would be taking graduate students next year. In the end I had only 5 programs left and I applied to all of them.

About contacting professors. As far as I understand, you can do that in all fields, except - for some mysterious reason! - English. (Here I ask other experienced forumers to correct me if I am wrong.)
BUT: If a professor is interested or even very very interested, that in no way guarantees that you will be accepted to this program because there are many other factors at play during the application process (most important of them being funding and faculty politics). But of course having a professor in a program who has expressed interest in working with you is a very good sign. It is definetely better than having no such professor. If you find a profesoor who is willing to take you as a graduate student but you are unsure about your stats, you can ask them about that. But of course don't ask it in the first letter to them!!! Only when you see that they are interested (and friendly).

Finally, I want to say, that all I have told above is based on my experience and it helped me - I was accepted to a school with a great fit (which is supported by the fact that they decided to give me a nice fellowship). May be there are other ways to choose programs and estimate your chances with them. May be in other fields (I am in social sciences) rules are different. I hope that others will correct me or pitch in some ideas based on their own experience with application process.

Good luck!

Probably won't be the last time either. Such is life.

If you haven't authored your own paper, I would consider presenting at an outside conference (not on campus or related to your home department) like a regional event for the APA and getting feedback on one of your top papers from your junior or senior year. If you can show coherence and a developing body of work or line of thought in your research it can help you immensely. I would also reach out to some programs you are interested in and email potential advisors or people you would like to work with. See if they are traveling to a conference you might be able to attend and meet them for coffee. My experience directly with psychology is limited to some coursework in evolutionary psychology and the like, but assuming the needs of social sciences are relatively similar your best bet is going to be able to tie your practical experience into your academic work. If you want to work specifically with individuals who are autistic/on the spectrum, then you have a good case to make that can speak to your potential.
If I read your post right, it sounds like an MA might be better for you, though. I originally wanted to go straight into a PhD from my BA and took my time earning my undergrad degree (10 years) because of #reasons... life happens, right? I would strongly encourage you to consider an MA, again seeing if you can tie it into your existing work. An MA is less commitment, gives you a solid sense of what grad school can be like, and you will still leave with a marketable skill set.

I feel your pain! I applied to 7 last year and got nothing but rejection, including two that I really wanted to attend. This year I seriously looked at six but eventually only applied to three - two academic (PhD), one related but non-program opportunity related to my region of interest. I received one offer, and am waiting on the other two still.
The three programs I dropped either required you to have an MA within the discipline or my POI was either no longer affiliated with the department (shift in appointment) or seriously planning their retirement. Keep going!

I'll take a shot based on your username and guess you're applying to microbiology/biomolecular science programs, so you'll probably be doing rotations your first year anyway--so you can be flexible. Definitely bring up the PIs you named that align with your 'interest', and if you're enthusiastic about the school for other reasons, talk about that too!

I've been in your position for one program, and I spun it as "My interests align well with the current work of Dr. X, Y, and Z, but I'd like the opportunity to collaborate with researchers in other fields/take an interdisciplinary approach/learn new techniques" etc. Having more than one focus isn't a weakness as long as you have the rationale or experience to back it up.

First I would research your school's policies on bringing on a second advisor to your dissertation and make sure you're very clear on what the procedure is for doing so.  There has to be some policy on the books somewhere.
If there is someone in the department that you trust (like a professor or advanced graduate student), talk to them privately and see what they think, if they have any suggestions for getting the help you need. 
Then set up an appointment to talk to your department chair or department's director of graduate studies and politely suggest that your current advisor is very busy and you need a little bit more help, and wouldn't it be moist convenient for everyone to bring on a second advisor. Use what you've learned about the school's policy to show (again, politely) that your suggestion is totally ok and easy to do.
If no one will help you, then you might need to go over the department's head--to the graduate school admissions or graduate union if you have one, and find out what your next options are. When you signed that contract as a graduate student, your school had to grant that it would provide you with any reasonable resource you need to complete your program, and that includes first and foremost an advisor who advises you. In the mess that is departmental politics, it's easy to lose sight of the fact that they are obligated to help you in addition to you being obligated to them, but that's what the contract is for. 
Good luck!

There aren't many funded MA programs for EAS in the United States. A lot of departments use them as a means for raising revenue. The funded ones that I know of are the University of Massachusetts Amherst, University of Oregon, University of Washington and University of Colorado. These schools all offer TAships to (some) MA students; if that's what you'd be interested in doing, its good to have some kind of teaching experience when applying, particularly language teaching experience. I can't speak for any of the other programs but I did my MA at UMass and they have a small but strong faculty in media, lit and language. In terms of emphasis, I would focus less on any program at large and focus on the professors in your field you'd like to work with on a particular project. If a program doesn't have someone who they feel is equipped to supervise your project, they probably won't admit you, so figuring out specific people you could work with and reaching out to them is a good way to boost your chances. I totally feel you on not wanting to go into debt, but be forewarned that even if you don't go into debt or have to take out loans, even funded MAs likely won't give you as much funding as they give PhDs. I hope this helps!

You're welcome! "Boo hoo" beats "cry me a river." No?

For the love of God, why do people accept offers they aren't crazy about well before the deadline?
 
Boo hoo, you got an early acceptance. Stop trying to rationalize your decision by likening an early acceptance and funding offer into a stealth pressure campaign. Did want to you to accept quickly? Of course they did. Do you think they made you an early offer of admission and funding because they were ambivalent about you? They wanted you! That is OK. The school clearly told you that the deadline was April 15th. They did everything right. Nonsense rationalization is what got you in this situation to begin with. Christ!
Live with the choices you made. Don't come up with BS reasons for justifying whatever you are going to do.
As poorly as you've handled this, fuzzy is right. A PhD is a long time and you should consider what is in your long term best interest. If and when you do withdraw from the school you know informed you'd enroll at, let them know as soon as possible that you are withdrawing so that they can go down their list of applicants and get their 2nd or 3rd choice candidate. It is the least you could do even if you dread this conversation. If a phone call is too scary, at least send an e-mail. Professors are surprisingly understanding with stuff like this, especially if you are honest about your situation and timely with your response.