Microsoft Store offers the 5.5-lb. Sony VAIO AMD A8 1.7GHz 15.5" Laptop, model no. SVF15412CXB, for $539.99 with free shipping. That's $30 off list and the lowest total price we could find. Features include an AMD A8-5545M 1.7GHz quad-core processor, 15.5" 1366x768 LED-backlit LCD, 4GB RAM, 750GB hard drive, DVD burner, 802.11n wireless, webcam, and Windows 8.