Dell Small Business offers its Dell OptiPlex 3020 Micro Intel Haswell Core i3 Dual 3.1GHz Desktop PC for $489. Coupon code "DELL$100" cuts it to $389. With free shipping, that's the lowest total price we could find by $47, although we saw it for $20 less in April. It features an Intel Core i3-4160T 3.1GHz Haswell dual-core processor, 4GB RAM, 500GB 7200 rpm hard drive, and Windows Professional 7 64-bit with a Windows 10 Pro license. Deal ends June 16.