Just four issues in my opinion.
The first has been mentioned, your logo doesn't stand out in anyway.
The second is padding, you've added padding to the top of the page, but not on the bottom. I'd suggest adding some to the bottom to add some additional fluidity.
Third, you have not used any accessibility features, try adding simple things like access keys to allow that extra useability.
Last, your menu items seem really busy, the actual text used seems somewhat too large.
Just one little thing, your source code seems to have no structural alignment. Use indents. If you want an example of what I mean, have a look at the source code for http://www.mudsplat.com/design/index.php
Otherwise, all fine in my opinion.