I think it's a cool site. Honestly, it took about 10 seconds to load the site on my cable modem which isn't a deal breaker but it might put off a dial up person...(why I still have to mention dial up in this day and age is beyond me)
Other than that, I do agree with one of the earlier posts that it's hard to know exactly what you do when the site first launches.
I have heard that people visit Realtors sites to look at houses, period. That's why it drives me nuts to see images of Realtors splashed across their front page - thankfully, you didn't do that, otherwise my critique would have gone into a whole new realm. Overall, I think you are heading in the right direction. My suggestion might be to cull from numerous findings and studies on what buyers and sellers look for on an agents site and implement the ones that work for you.
Overall:
Home Page: C-
Speed of page load: A
Made me want more information: C-
Lead generation: D
Overall site appearance: A+
Ease of use: A
"Sticky-ness" - something that I would mark the site and return in the future: C
MLS Search Feature: A-
My .02 (and that's exactly what it's worth)