Dell Small Business offers its 4.6-lb. Dell Latitude 15 5000 Series E5570 Intel Skylake Core i7 2.6GHz 15.6" Laptop for $639 with free shipping. That's $100 under last week's mention, $978 off list, and the lowest price we've seen. Features include an Intel Core i7-6600U 2.6GHz Skylake dual-core processor, 15.6" 1366x768 (720p) LCD, 4GB RAM, 500GB 7200 rpm hard drive, 802.11ac wireless, Bluetooth 4.1, USB 3.0, HDMI, 3-cell battery, and Windows 10 Professional 64-bit.