I see you're using the buttons from vBGfx, very nice, I really like them.
Anyway, I don't like the forums much. (no offense of course)
I mean, the popup effect is nice and cool for blogs and such, but not for entire websites. And while the iframe is a nice effect (and done very nicely

), it's too small - waaaaaaay too small. I'm on 1280x1024 and it looks very unproportionate.
That's what I think. Other than that, the design is very good and you seem to have some good graphics skills.
P.S. Nice postbit.