Dell Small Business offers its Dell XPS 8910 Tower Intel Skylake Core i5 2.7GHz Desktop PC for $619.99. Coupon code "XPS479" drops it to $479.99. With free shipping, that's tied with our mention from two weeks ago as the lowest price we've seen for this configuration. (It's the best deal now by $120.) It features an Intel Core i5-6400 2.7GHz Skylake quad-core processor, 8GB RAM, 1TB 7200 rpm hard drive, Nvidia GeForce GT 730 2GB video card, DVD burner, 802.11ac wireless, Bluetooth 4.2, Gigabit Ethernet, USB 3.1 Type-A and Type-C, USB 3.0, HDMI, DisplayPort, McAfee LiveSafe 12-month subscription, and Windows 10 Professional 64-bit. Deal ends July 21.