Dell Small Business offers its Dell Precision 3000 Series 3620 Intel Skylake Core i3 3.7GHz Mini Tower Desktop PC (no monitor) for $729. Apply coupon codes "SAVE35" and "WKS$100" to cut it to $531.80. 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 7200 rpm hard drive, HDMI, USB 3.0, and Windows 7 Professional 64-bit with a Windows 10 Pro license (no optical drive is included). Deal ends March 25.