Hi Guys: I"ve just been hurled out of OS 9. My old CPU was replaced by a Mac Pro. What Hard Drives, can I use that are not as expensive? (Original is Serial ATA 3Gb/s) My old G4 Dual 1.25GHz, used a Maxtor 120GB ATA/133. Is it compatible to be used for Photo storage? I have a lot to relearn new Mac Pro & Leopard. Thanks John