I've got a few questions, I have been looking at external harddrives, and I've decided to buy an enclosure for two drives. I'll add one 500GB drive first, and when Leopard comes out I'll buy another one for Timemachine. This is the enclosure that I've been eyeing: the OWC Mercury Elite Pro -AL RAID FW800 Drive Enclosure for 2 SATA Drives. Question specifically about the above inclosure. Can I start off with just one 500GB drive, and buy another one when I need the space? I would want both the drives in the same enclosure but I want to be able to access them both individually. Making a standard drive for files and whatnot, and the other for back-up. Not related to the enclosure. Let me give you an example to illustrate my question. I edit movies and make 3D animations. For now 500GB seems like enough storage. When Leopard comes out, and I buy another 500GB drive for Timemachine, I would want Timemachine to back-up the files that are on my Macbook Pro HDD, as well as the files and projects that are on the external drive. Is this even possible? Will Timemachine back-up the files, projects and all the data related to the projects FROM the external harddrive? I hope I've been clear enough, thanks for any advice!