Hey Heather,
I didn't mean to imply anything about the actual program at Maryland by my previous comments. I do like the program, that's one of the reasons I applied. My complaint is how they run the admissions process. It's one thing not to know when financial information will be going out, but I found it absolutely unreasonable to require a decision from me by March 1. Not only can I not make an informed decision without financial information, but I wont even have heard back from UIUC by March 1.
It sounds like you have a really solid application. I would think that since you have experienced success in a graduate program before you are starting with a leg up on competition coming directly out of undergrad.
I applied in the middle of January, and it only took about a week for me to hear back (by mail, so they only had my application a couple of days before they sent out a decision). Since you applied right at the deadline I would imagine that there would be a little more of a backlog and it would take longer. Best of luck to you,
-- Kevin