Dell Small Business offers the Dell OptiPlex 7020 Intel Haswell Core i5 3.3GHz Small Form Factor Desktop PC for $629. Coupon code "OPTIDEAL" cuts it to $579. With free shipping, that's the lowest price we could find by $7 and the best we've seen. It features an Intel Core i5-4590 3.3GHz Haswell quad-core processor, 4GB RAM, 500GB 7200 rpm hard drive, DVD player, and Windows 7 Professional 64-bit with a Windows 8.1 Pro license. Deal ends June 30.