Dell Small Business offers the Dell OptiPlex 3020 Intel Haswell Core i5 3.3GHz Small Form Factor Desktop PC (no monitor) for $649. Coupon code "$W99$D2LGFPZB6" cuts it to $549. With free shipping, that's tied with last week's mention and the lowest total price we could find by $49. It features an Intel Core i5-4590 3.3GHz Haswell quad-core processor, 8GB RAM, 500GB 7200 rpm hard drive, DVD burner, and Windows 7 Professional 64-bit (plus a Windows 8.1 Pro license). Deal ends April 17.