Dell Small Business offers its Dell Vostro 3900 Intel Haswell Core i5 Quad 3.2GHz Desktop PC (no monitor) for $459. Coupon code "399VOSTRO" cuts the price to $399. With free shipping, that's the lowest total price we could find by $93, although we saw it for $20 less in February. It features an Intel Core i5-4460 3.2GHz Haswell quad-core processor, 4GB RAM, 500GB 7200 rpm hard drive, DVD burner, media card reader, HDMI, two USB 3.0 ports, and Windows 7 Professional 64-bit with a Windows 8.1 Pro license. Deal ends May 24 at 8 am ET.