Intel SS4200-E Network Storage Server for $149.99 shipped. Here is a screenshot for your reference. It features an Intel Celeron Processor 420 at 1.6 GHz, up to four 3.5″ SATA (3.0 Gb/s) hard drives, and eSATA support to expand beyond four. For the technically inclined, here is more information on NAS Server. Most places have this network server for over $200.