I can get an older 5400 rpm, MAXTOR, 300GB hard drive for a really great price. Will a modded xbox be able to recognize and utilize all 300 GBs? Or is there a limit? Also, is there a major difference between the 5400 and 7200 speeds when used in an Xbox? I read somewhere that the speed difference isn't noticable and that a 7200 will just generate more heat which would require another cooling system. Any information or documentation of experience would be greatly appreciated.