Computer Upgrade King via Amazon offers the Lenovo ThinkServer TS440 Intel Haswell Xeon 3.2GHz Server, model no. 70AQ0009UX, for $299.99 with free shipping. That's the lowest total price we could find by $360. It features an Intel Haswell Xeon E3-1225 v3 quad-core processor, 4GB RAM, DVD burner, four 3.5" drive bays, six USB 3.0 ports, and 2 USB 2.0 ports. (Note that it lacks a hard drive and OS.)