Today only until 6 pm ET, Office Depot offers the 5.5-lb. Lenovo Flex 2 15 Intel Haswell Core i5 1.7GHz 15.6" 1080p Convertible Touchscreen Laptop, model no. 59418271, for $549.99 with free shipping. That's $70 under our September mention and the lowest total price we could find by $50. It converts into a touchscreen tablet and features include an Intel Haswell Core i5-4210U 1.7GHz dual-core processor, 15.6" 1920x1080 (1080p) LED-backlit touchscreen LCD, 6GB RAM, 1TB hard drive, DVD burner, 802.11n wireless, Bluetooth 4.0, USB 3.0, webcam, 4-cell battery, and Windows 8.1.