Hi, New MacPro gleaming in front of me. One 500GB HD for Aps and OS (and possible some long term, unused file storage) One 1TB HD for current Data, Photos, Music. I currently have most of this on the 500GB drive that came with the computer, but now want to move my data onto the other 1TB drive. I'm sure that this is very simple, but I want to be sure that I'm doing it right, so that the OS and Aps know where the files are. Particularly Aperture Ap, and the Aperture library. This is what I'm thinking of doing , so please correct me if this is wrong: Go into Current HD, and move the folder 'Users' and put it in the new Second Hard Drive. That's it. Will Aperture see my library if it is moved?