Western Digital Caviar 640GB SATA Hard Drive with 16MB Cache for $59.99 Shipped

Western Digital Caviar 640GB 7200RPM SATA Hard Drive with 16MB Cache for $59.99 shipped.  This drive uses a high-density 2-platter design for better performance while reducing power consumption.  Note that it comes in OEM packaging, which means no pretty retail box and marketing materials but is otherwise identical.  This drive usually goes for about $80.