the one moi suggested { http://www.cyberguys.com/templates/S...roductID=10220 }
I looked at it & found info on some other sites
http://tech-reviews.com/2007/10/07/x...system-backup/
[This is the only back up that will back up the Operating System of your computer. It will also backup–All Windows and boot files are backed up, preserving your OS perfectly.
Restore–Restore the entire drive or choose a particular folder or files.

Hard drives only last about three to five years, so be prepared. The Xtreme Files OS Backup Enclosure provides easy one-touch archiving of your hard drive’s contents, including its operating system files.
Includes 3′ USB 2.0 device cable, power adapter, power cord, mounting screws and software on CD-ROM. Requires a 3.5″ ATA66/100/133 (IDE) drive of greater capacity that your computer’s hard drive(s), sold separately, Windows 2000/XP and a USB 2.0 data port.

Restore–Restore the entire drive or choose a particular folder or files.
• Back up 1-4 drives in one PC

• USB 2.0 compliant

• Multi-user security preserved

• Archives multi-boot menu

• Uses Symantec OS restore software]

you do need to have a hard drive to plug into this
it handles the security & restoring for the backed up files

so it sounds like if the back up drives get taken no one can get your info unless they take your computer too.