ok a few days ago my firewire drive disappeared. this was about a few days after I installed 10.5.3 so I try the same firewire drive on my macbook again, no go so I go buy another cable, same thing on both , no go. so I go on ebay and buy a cheap 200gb drive, no go again. both firewire drives were working days before and now nothing. new cords still nothing on both drives. the systems are a intel mac mini,and a intel mac book. swapped the hard drives in the external cases still nothing. none of the drives show up under disc utilities. so I download a data recovery program. both drives don't even exist... don't show up and not listed. under about this mac both say "firewire up to 400mb/sec" and thats it. any clue...reinstalled 10.5.3 again on both nothing sit...... any help would be great I've seem to lost all my backups if no help can be found.