are you looking for used or new drives? if used then I have 500 GB Hitachi 5400 rpm HDD in good condition. a good case will set you back by about 800 to 900 bucks. got lot of HD movies on it. mainly used for storing movies and cartoons. the HDD works perfectly with no bad sectors. am not selling off because of some problem. I am looking to upgrade my HDD to 2 TB now.[DOUBLEPOST=1391336349][/DOUBLEPOST]sorry.. I think the 500 GB drives a toshiba.. the 320 GB is hitachi.