Looks alittle odd only filling part of the window and aligned to the left. I think it would look better with the entire layout centered or stretched to fill the browsers window.
Not to bad but kind of plain, I don't like the white background but then thats a personal thing. You need to somehow fill the page, perhaps center everything. The header is very nice.
Looks really nice, I like those mini buttons as choices, and it's nice that you're giving them options to do a search so they can know right away how to get started.