I have 4 macs in the house. One has 2 hard drives. Am upgrading all to Lion. I have a 1TB Lacie external and want to back up all of them onto it. The sizes of the individual HDs are 128, 230, 300, 60 and 128, so there is room, technically speaking. Just want to back them up and put the Lacie somewhere safe. Don't want anything fancy or automatic, manual, occasional backup is okay with me. Can it done simply with Disk Utility and partitioning? I'm by all measures a newbie, so be easy on me and thanks.