Cold Reboot Attacks on Disk Encryption

http://www.schneier.com/blog/archives/2008/02/hotplug_1.html has some of the relevant tech
they use for this.  I looked at the site and they have a few suggested methods for hooking in
to the target computer's power:

The Easy: If it is plugged into a power strip, you plug their UPS into the same strip then
pull the plug to mains power.  Take the computer, power strip and UPS off to your lab.  (Same
works if the outlet has 2 sockets, just unplug from the one that the computer is not using and
plug the ups into that then take the outlet with you)

The Harder: If there is no power strip, remove the outlet from the wall (while the computer is
still plugged in).  Attach some special jumper cables to the screws on the back and cut
(physically) the mains power.

The Hardest: Strip the power cord to the computer and attach the UPS wires directly to the
wires inside the cord.

-ben