well, the top and bottom nav can be hard to read with the busy background behind the text, I’d add some subtle background to alleviate that. other than that, it seems to have a lot of breathing room, you don’t want all the elements clustered together, but there may be a little too much space around elements.
And in Firefox on windows, I am seeing the "featured" div overlap the header section by a few pixels, intended?[attachment=0]screeny.gif[/attachment]
Other than that I personally feel that although it’s a little generic, the design fits the product/ industry pretty well.