Walmart offers the Toshiba X300 6TB Serial ATA 6Gb/s Internal 3.5" Hard Drive, model no. HDWE160XZSTA, for $159.99 with free shipping. (Amazon has it for the same price, although it's temporarily out of stock.) That's $10 under our Black Friday mention, the best deal now by $29, and the lowest total price we've seen. It runs at 7200 rpm and features a 128MB cache.