I really like the site - not to busy, easy to navigate. I guess the only thing I would suggest is to add an 'add to cart' button next to each item. When you scroll down through the catalog pages and choose something there is no visible way of adding to the cart without going back to the top of the page. It's something that if someone is new to the site they might miss and you could lose them.
Jessica
www.qualitycutters.com