[bas_I_am]

I would have only one suggestion. . . tighten up the white space. In 1280x1024, almost half of the vertical page layout is header, navigation, and menu. This, in my opinion, should take up (at most) 15% of a page.

Perhaps the contents of "header_bar_1" and "header_bar_4" could be rendered vertically in a div down the left side of the page.

Besides that, I love it. Nice job!!!