B&H Photo-Video offers the Hitachi Deskstar 7K4000 4TB Serial ATA 6Gb/s Internal 3.5" Hard Drive, model no. 0S03355, for $199.99 with free shipping. That's $0.05/GB, $10 under yesterday's mention, and the lowest total price we could find by $40. (For further comparison, it's also the best price we've seen since Cyber Monday, when it was $11 less.) It runs at 7200 rpm and features a 64MB cache.