This Toshiba S55D-A5383 15" Laptop drops from $599.99 to $449.99 with instant savings and this $50 mail-in rebate at Staples.com. Even better, use the code 64888 to take another $100 off, bringing the total price to $349.99. With free shipping also included, this is the best price we could find for this Windows 8 laptop by $100. It has a 2.9GHz AMD Quad-Core processor, 8GB of memory, a 750GB hard drive and more. Sales tax is charged in most states.