Hmm, it's a bit "clunky" - just the way each page loads up from the navigation, it doesn't feel right. And why is there a large green box taking up a third of the left hand side of the page?
You need to use a sans-serif font as it will be easier to read. Overall the site comes across as shoddy and unprofessional to me, but with a little work I can see it looking good. The overall layout seems fine, its just the way the text and navigation look. The image quality for the products is spot on so it's not all bad.