[COLUG] Live CD for backups

[Kevin Reilly]

Folks,

I do some work for a non-profit who encrypt there hard drives(Windows). 
Most backup solutions don't work for them for security reasons or 
practicality. They have done backups from the mounted encrypted system 
to a TrueCrypt container on a USB hard disk. They want snapshots of the 
whole drive for restores. I was thinking a good solution would be to do 
a straight dd off a booted CD to a USB attached hard drive. Does anyone 
know if this exist already? Is there a better solution?

My goggling has not turned up anything but Knoppix type solutions. Would 
DSL support the USB and a scripted frontend to do the backup and 
restore? Has anyone done something like this already?

Thanks in advance,
Kevin