It's looking really rather good - there's a common element that most graphic/coding forums seem to have so it does lack that slight element of originality (it reminds me a lot of the skins they've had over at mAs) but what you have done looks top drawer, and as long as the content side holds up then it'll be the benchmark for future VF sites
It looks nice, although the links in the banner are a little...odd? You have an events link [which only the admin can access], and you have a "members" link, even for guests. Possibly have different links depending on whether the user is a guest/member/admin?