i used clonezilla to make a backup and restore a 250 GB image of my computer.
one little hangup that i found solved in this post that i really need to remember.
http://www.linuxquestions.org/questions/linux-software-2/clonezilla-cant-find-disk-image-696785/
when mounting the restore drive, do the parent directory. if you do the actual directory of the restore it wont even show the option to restore it.
very helpful