I'm not huge on the way the navigation buttons "float" in midair. Looks sorta disjointed, at least in Firefox. Also, its been mentioned before, but something must be done about the rollovers on the Pricing page. Those three boxes in general could be cleaned up a little. In Firefox, the hover text is non-bold and the original is, so it actually causes a little bit of movement of the boxes when you mouseover. Otherwise, nice, clean site.
