Dell Small Business offers its Dell OptiPlex 7020 Intel Haswell Core i3 3.5GHz Desktop PC for $599. Coupon code "$W99$D2LGFPZB6" drops it to $499. With free shipping, that's $442 off list and tied with last week's mention as the lowest total price we've seen for the OptiPlex 7020. Features include an Intel Core i3-4150 3.5GHz Haswell dual-core processor, 4GB RAM, 500GB 7200 rpm hard drive, DVD-ROM, and Windows 7 Professional 64-bit (with a license for Windows 8.1 Professional). A 3-year warranty also applies. Deal ends April 24.