TigerDirect via eBay offers the Western Digital 1TB WD Caviar Blue SATA 6Gb/s Internal Hard Drive, model no. WD10EZEX, for $48.08 with free shipping. That's the best price we could find by $2 (most stores charge $55 or more), although we saw it for $8 less last month. This 7200 rpm hard drive features a 64MB cache.