Acer Easystore H340 4-Bay Home Server, Atom 1.6GHz, 1TB/2GB for $389.99 shipped.  Scroll down to see the combo deal to get another 1TB drive for a total of 2TB as shown in this screenshot.  It runs on the popular Windows Home Server with an Atom processor for reduced power consumption, performs backup for networked PCs, streams media content, and more.  This Acer Easystore 4-Bay Home Server is equipped with 2GB of RAM, 1TB of hard drive, 3 additional available drive bays, Gigabit Ethernet, 5 USB ports, eSATA port, and more.  Note that this home server is also available here without the additional 1TB drive for $349.99.