Newegg has the HP ProLiant MicroServer Gen8 Ultra Micro Tower Server (712317-001) + two Seagate ST2000DM001 Barracuda 2TB SATA3 7200RPM hard drives for $550 - $50 rebate [Exp 9/25] = $500 with free shipping. Features Intel G1610T 2.3GHz, 150W power supply and 2GB memory. No operating system or hard drive included. Goes for $374+ online.
Deal has expired