i'll be getting a new macbook pro (when the new ones are released) with OS X leopard and i'll be backing it up on my Iomega Ultramax 1TB external drive. I also store music, movies, tv shows and other general media on this disk. Can anyone explain to me in detail how to set it up so I can ALSO make time machine back-ups on this drive? (i'll bookmark this thread then and use it as a manual when i get the machine) I read somewhere you have to partition it? (don't know how) and what is the suggested size of the back-up partition then? what if the partition is full? can i enlarge it afterwards? or would i have to make a new partition and move everthing from the first one in there? thanks in advance!