Amazon offers the Hitachi Deskstar 5K3000 3TB Serial ATA 6Gb/s 3.5" Internal Hard Drive, model no. 0S03228, for $108.61 with free shipping ($0.04/GB). That's the lowest total price we could find by $21, although it was a buck less two weeks ago (since expired). It's also the least expensive shipped 3TB SATA internal drive we've ever seen by $3. It runs at 5400 rpm and features a 32MB cache.