ANTOnline offers the Lenovo ThinkServer Intel Haswell Xeon v3 3.2GHz 5U Tower Server, model no. 70A4001LUX, for $394.88 with free shipping. That's $5 under our January mention and the lowest total price we've seen for this model. (It's also a current price low by $7; most merchants charge $450 or more.) It features an Intel Xeon E3-1225 v3 3.2GHz Haswell quad-core processor, 4GB RAM, DVD burner, one 5.25" drive bay, three 3.5" drive bays, and Gigabit Ethernet.
Note: It lacks a hard drive and OS.