I really like the font I think it's a good choice. The background color still seems off a bit with the logo at the top. Maybe try a darker shade? I think the twitter bird is too close to the logo, it's very busy up there. Give the two logos some space, make it up by tightening up the lower half. Good job though I like it! Keep going.
Still a bit uncentered, and as dharts said the color could be darker, but it does look good nonetheless.
Looks really good! Little advice, I think that if you changed the purple, to the forum banners blue it would suit nicely!