digits2006: I'm not comfortable posting my stats publicly but will share that I have a fair amount of research experience (independent projects, R.A., etc.) but do not have a publication - yet!
It appears that you are highly motivated and will be participating in a summer program to gain additional research experience -- which is great! -- and it will surely help to compensate a lower than typical GPA for social psychology Ph.D. applicants. Keep in mind that programs also consider the types of courses you've taken (i.e., a well-rounded course load with a healthy mix of hard & social science classes and math classes). So, if your GPA is a bit lower because you've taken a more challenging course load, this will likely be factored into their evaluation of your transcript.
It sounds like you're on the right track so good luck with your studies and keep up the research. And start studying for your GREs. One of the easiest things you can do to get yourself prepped is to create & review your verbal flash cards now; it will make it a lot easier when you need to knuckle down to brush up on your math and learn the reading comprehension and essay strategies as the test date draws nearer.