Our Prez Art Gorski shares his experiences with cloning, "I've used SuperDuper before to clone a hard drive before installing a new OS version from DVD. After the clone is made, I reboot the computer from the clone and log in to make sure it works properly.
"Then I totally wipe the internal hard drive (yikes!) and install a totally fresh copy of the OS, which will eliminate all the cruft on the previous install.
Then I use migration assistant to move everything from the clone to the new OS install. Ta da! A perfect upgrade with no junk from the previous internal drive. Of course, in the brave new world of Lion, this isn't as easy to do anymore."
So continues our on-going look at cloning. More input from PMUG members?