Western Digital 800GB 5400 RPM 64MB Cache SATA 3.0Gb/s 3.5″ Hard Drive $49.99

Newegg.com has the Western Digital Caviar Green WD8000AARS 800GB 5400 RPM 64MB Cache SATA 3.0Gb/s 3.5″ Internal Hard Drive for $49.99 with Free Shipping.