The gloss on the huge-ass header fades into the "Give your site some class" box, what's up with that?
I also reckon you should change the condensed helvetica neue for just standard neue, it all looks to ugly condensed.
There's also a very sudden jump in style from the header down to the content, and speaking of which, the content is all at the very bottom and on my 1680x1050 resolution, the header takes up a HUGE amount of that space, let alone anyone on a 800x600 or 1024x768 res.
The bevel and emboss on the three blue sections is ugly, if you're going for the web 2.0ish look like it looks like you are, just do a stroke down the bottom right of a 1px white on soft light, and 1px black on the top left... and please change the shading you've done to normal as the blending mode, softlight makes it look silly...
You should keep the content section with the same style, switch out the georgia headers for calibri backed up with arial/helvetica or something similar.
I also reckon you should do something like a carbon fibre look behind the navigation area, to break it all up a little bit more and make it look nicer.
</ 2 cents>