Microsoft announced Friday that they have launched Windows Live Shopping in beta, it only works on Internet Explorer for Windows. It runs on AJAX, making it Web 2.0 :), but you can drag and drop, share items with "friends," and review and create reviews.
Conducting a search on lcd tv brought up a very nice interface. Since I just bought one for my new home, I wanted to see what they had to offer. You can quickly (well, it doesn't run too quickly) narrow your search by screen size, aspect ratio, price range, brand and seller, all excellent filter options. After you filter your search, you can then sort by "best match," "popularity," "price," and "rating." In addition, they have this little slider where you can change the search results display from list view with or without pictures or simply picture view. You can also add products to your "shopping list" or to "compare list." They also have all the standards you would expect from a shopping search engine.