B&H Photo-Video offers the Hitachi Deskstar 7K4000 4TB Serial ATA 6Gb/s Internal 3.5" Hard Drive, model no. 0S03355, for $189 with free shipping ($0.05/GB; click through to B&H to find it). That's tied with our expired mention from four days ago and the lowest total price we could find today by $66. It runs at 7200 rpm and features a 64MB cache.