TigerDirect offers the Western Digital 1TB Caviar Green 3.5" Serial ATA 6Gb/s Internal Hard Drive, model no. WD10EARX, for $99.99. This $20 mail-in rebate cuts it to $79.99. With $2.29 for shipping, that's $0.08/GB and the lowest total price we could find by $15. This "green" drive purportedly consumes less power compared to other models and features a 64MB cache. Deal ends May 25.