When I click on forums and it takes me to the list, the subforum text (for SF4 for example) is just a little too small to click on. Easy to accidentally click on the wrong character.
Forum looks great BTW.
Main page may be a little too dark, but it works.
I would change the font for posts!! Doesnt look great, too much space between characters 
but thats just my opinion, forum looks great!!
Edit: Testing the new edit box. Looks great!! I thought of something else, the signatures font should be smaller or something in relation to the posts! Its easy to get confussed about what to read from the current size.