It seems like a decent enough forum. Is there anything in particular you wanted to improve? You Might want to try and create a Logo that is more memorable with a bit of character - perhaps... depends on your goals and target audience....
I would integrate some orange into your layout... maybe the header with orange text along with the SF text.
yea, I was also thinking to add some orange, but still looking for some good improvement with that orange.. I'm also looking for new icon sets(smilies/status icon(msn/..)) if you have any suggestions, tom