Check my "Educational Resources" blog post for some other OSS software you may find useful.
iTalc for instance would be very useful in a school computer lab
(works with Linux and Windows Clients)..
http://www.linuxquestions.org/blog/f...sources.-1568/
Cheers.
P.S. I've use the bootable Live clonezilla for one-off hard disk cloning, and didn't find it hard to use.. it was just walking through the menus, I never bothered with reading the docs.. Yes its got far more options than most of the other Open Source solutions, and can do more in the long run, but the live CD sure is slick.