It really looks great. I'm assuming you designed/coded most of it yourself given the webapp section, amirite? Really awesome stuff. Are you trying to get freelance work?
If I may offer one bit suggestion to improve the usability of an otherwise awesome portfolio site--it seems with the button effects that I can't Right-click > Open in New Tab/Window in either Firefox or IE7 (would test with more browsers, but I'm on a work computer).
If you're going to show this to potential clients, they might want to middle-click a few of the projects they're interested in looking at as they scroll through your page so they can go through each newly opened tab rather than having to click the link, read the project page, hit back, rinse, repeat. It's a subtle thing, but you want to make your portfolio page as accessible to its viewer as possible.
Oh and just remembered one more thing, if you're looking for gigs, you might want to duplicate your "Contact Me" link at the top of the page. Or maybe even a fixed element in the bottom corner of the page if it works out aesthetically.