Heres my goal, I have a powerbook and a Lacie 180gig FW 800 Drive and i want to partition that drive into two section, 1) To have it mirror (??(raid)???) my PB drive, along with 20 gigs for extra storage=80gigs 2) A 100gig partition for FCP render, and data files, ect. while running FCP off of the PB drive. (For this i believe that all i have to do is set FCP to run off that partition, and it has nothing to do with a raid setup.) Im in Disk Utility, and am ready two partition the drive. Am I in the right direction?