Guys, I just bought a Western Digital 1To drive to back up my iMac, my girlfriend's MacBook, and my other external hardrive on which I put all my videos. Since I already use Time Machine with an other smaller drive, I would like to use that new 1To drive to be my master bakcup system, with bootable disk image of the two computers. I bought SuperDuper to do all that, but I'm not quite sure how to best use it. Basically, I'd like to do a total backup of the two computers once a month, as well as back up the files on m multimedia hard drive. How should I do that ? Do I need to create three partitions on the new disk ? How do bootable images work ? How do you boot from an other computer with your superduper backup ? ... I hope you can give me the best practice and advice on how to do that.