Returning a couple of computers. One’s dead so I don’t know what’s installed on it until I can pop the hard drive into something else, but for my desktop all I have installed is (all Steam):
Killing Floor
Max Payne
Civ IV
Torchlight
Audiosurf
CS: Source
Plain Sight
Portal
TF2
Do I need to deactivate any DRM on any of them to prevent using activation amounts?
Pretty easy transfer of the Steam directory, though some games are a pain in the ass and like to be installed again (Titan’s Quest with expansion comes to mind).
But yeah, Google up the locations of your save files and options files and back those up.