Don't forget dd! (Score 1)

Some friends of mine recently set up a Beowulf cluster, and they had to replicate what was on a number of machines. After not having much success with Ghost, they ended up using dd.

I guess this would mean you would have to physically mount each disk inside a machine one by one, but provided there is a small number of machines, this should be ok.

Having said all this, the ghost (or even cdr) may work great for you ;)

Good luck!