Okay, so I'm about to embark on an ambitious endeavor. For those who noticed, my wife's PB took a dive recently. Well, it does seem to be back up and running, but as a precautionary measure I want to swap out the hard drive. Currently, she has an 80GB HD in her PB, with probably about 20GB free disk space. On the other hand, I have an 80GB HD in my PB with free disk space that fluctuates between about 8GB and <1GB free. So, I've ordered a new 120GB HD and an external enclosure. They should arrive today. What I want to do is copy (clone) my HD onto the 120GB drive, then swap the 120GB drive into my computer, then format my old drive and clone my wife's drive onto it, then swap my old drive into my wife's computer. My wife's old drive would then take up permanent residence in the external enclosure and act as a back-up drive for her, thus seeing less activity and prolonging its life, if there's anything wrong with it after the fall. So, here's the question... I know that SuperDuper and Carbon Copy Cloner will both clone a disk completely, but I don't know how they handle cloning an 80GB disk to a 120GB disk. Is there any issue with this? Will the resulting disk be bootable without any problems? Is one program better then the other? (I have no problem spending the $28 for SD if it's the better choice, even if getting CCC for free is attractive...) Of course, I will try to boot off the cloned disk before I start surgery, but I thought I'd try to draw on the immense wisdom stored in the brains of all the wonderful people here on the forums before launching into this endeavor. Many thanks!!