http://www.ebay.com/itm/Hitachi-Ultrastar-7K4000-HUS724030ALE641-3TB-64MB-cache-Internal-Hard-Drive-/272404141771?customid=245c894410bd11e7b714668361f36bc80INT&pub=5574652453&campid=5335869999&afepn=5335869999&icep_id=117&ipn=icep&hash=item3f6c8d5...