HP G70 17″ Laptop, Core 2 Duo 2.1GHz 3GB/320GB for $499.99 shipped after a $50 rebate. Here is a screenshot for your reference. It has an Intel Core 2 Duo at 2.1GHz, 17″ LCD at 1440 x 900 resolution, 3GB RAM, 320GB hard drive, wireless 802.11a/b/g/n, Ethernet, DVD burner, Vista Home Premium, and more. Note that given its size and weight, this is more like a very portable desktop than a true lightweight laptop. Others have it for about $629.
Originally posted earlier, this is just a friendly reminder.