Give it some structure. The site looks lost and without structure beacause it's just sitting on an open page with a solid background. Think about having some different colors on the top/bottom or right/left. This will give the site a better look as well as be easier on the user.
If you decide to put color on the sides then you could easily put a banner at the top that stretches to either side. Remember that the web standard is still 800x600 so design your site to be 770 pixels wide as that is the viewable space at 800x600.
hih man