Dell Small Business offers its Dell OptiPlex 3040 Intel Skylake Core i5 3.2GHz Mini Tower Desktop PC for $679. Coupon code "579DT" cuts that to $579. With free shipping, that's tied with our mention from last week and the lowest total price we could find by $11. It features an Intel Core i5-6500 3.2GHz Skylake quad-core processor, 8GB RAM, 1TB 7200 rpm hard drive, DVD burner, HDMI, USB 3.0, DisplayPort, and Windows 7 Professional 64-bit with a Windows 10 Pro license. Deal ends today.