Dell Small Business offers the Dell Precision 3000 Series 3420 Core i3 3.7GHz Desktop PC (no monitor) for $679. Coupon code "SAVE50BIZ" cuts it to $629. With free shipping, that's $276 off list and the lowest total price we could find. It features an Intel Core i3-6100 3.7GHz Skylake dual-core processor, 4GB RAM, 500GB 7,200 rpm hard drive, USB 3.0, HDMI, and Windows 7 Professional 64-bit with a Windows 10 Pro license (no optical drive is included). Deal ends February 18.