A techie friend recently told me about the Web site eCost.com, which sells a lot of electronic closeout items at great prices. All sales are final, however. The return policy is strict even for damaged items.
You will likely find better prices on sites like eCost and Newegg than Best Buy and Amazon, but the trade off is that you cannot return the items. So shop around, compare prices, and decide if the extra savings makes sense for you.