You could easily make the images, say, 150px less wide, if you don't mind sacrificing the space. The space betweeen your logo on the left and the four buttons on the right on your header image(s) could be removed, and some of the space on the navbar images (these are a bit too wide for the text you have in them), content boxes, and footer image could be adjusted so they are all ultimately the same width, and the site would still look great. If you wanted help with that I'd be glad but if you made this design I doubt you need any help.
Just suggestions :bigok:
--Cynical