Sorry wii, but your design suggestion would, in my opinion, be a downgrade and revert back to the vBulletin look.
Having the background color jump from blue to grey is a subtle but important delineation of navigation vs. content. Also, having a smaller logo again emphasizes the content and de-emphasizes the company logo. Content is king.
Honestly I have to agree with the others and say that what we have currently is better. There is too much whitespace (in this case blue) in your mockup. It looks odd and restricts the content. I prefer the lightweight, fluid-width design we have now. It emphasizes the content and lets everything else just kind of stay out of your way.
The current style is much better looking then your, good thing you can easily change it. (Atleast I belive it will be an easy template system )
@Sonic2k - It looks good with the stats at the bottom but like many other I prefer it on the side.