Lenovo offers its 5.7-lb. Lenovo IdeaPad G510 Intel Haswell Core i7 2.4GHz 15.6" LED-Backlit Laptop, model no. 59402507, for $649 with free shipping. That's $400 off and the lowest total price we could find, although we saw it for $40 less in February. It features an Intel Core i7-4700MQ 2.4GHz Haswell quad-core processor, 15.6" 1366x768 LED-backlit LCD, 8GB RAM, 1TB hard drive, DVD burner, 802.11n wireless, Bluetooth 4.0, webcam, 6-cell battery, and Windows 8.1 64-bit.