Amazon.com: Seagate Constellation ES 500 GB 7200RPM SATA 3Gb/s 32 MB Cache 3.5 Inch Internal Hard Drive ST3500514NS - Bare Drive : Electronics
Amazon.com: HP 657736-001 3.0TB SATA Hard Drive Disk (HDD) - 7,200 RPM, Entry, Hot Plug (HP), 3Gb per Second Transfer Rate (TR), 3.5-in Form Factor : Electronics