HP Pavilion Dv7
Here's a slightly larger laptop with a 17.3" screen, an AMD Phenom II X3 Triple Core processor at 2.2ghz, 4GB memory, a 640GB hard drive, a Blu-Ray drive and Windows 7 Home Premium 64-bit.
Let's take a look at the prices:
PCconnection.com $909.99 (X2 2.9ghz processor)
Amazon $878.91 + $4.95 shipping
Amazon (through their merchant GameWorld) provides the lowest rock bottom price, but it is through one of their merchants, not Amazon directly. For the price, they win, but for overall value (such as buying locally from a store you can return to if needed) Walmart has the best deal.
On the other hand, sales tax can be a factor. At 8% the sales tax would come to $969.84. In most states you don't have to pay this if you order through an online retailer. That's $85.98 more in your pocket.