Newegg via eBay offers the Lenovo ThinkServer TS140 Intel Haswell Xeon 3.2GHz Tower Server, model no. 70A4001LUX, for $329.99 with free shipping. That's the lowest total price we could find by $60, although we saw it for $32 less last month. It features an Intel Xeon E3-1225 v3 3.2GHz Haswell quad-core processor, 4GB RAM, DVD-ROM drive, four 3.5" drive bays, and Gigabit Ethernet. (No hard drive is included.)
This tropical nation is practically perfect for anyone open to leaving the U.S. in hopes of dramatically cutting costs.