Lucasarts is releasing some of their older catalog of games on Steam. All games are updated to work on XP and Vista; the current list is:

Armed and Dangerous
Indiana Jones and the Fate of Atlantis
Indiana Jones and the Last Crusade: The Graphic Adventure
LEGO Indiana Jones: The Original Adventure
LOOM
Star Wars Battlefront II
Star Wars Republic Commando
Star Wars Starfighter
The Dig
Thrillville: Off the Rails
Secret Of Monkey Island Special Edition
Of further note are comments that indicate that the rest of the old Lucasarts games will eventually appear as well. This is huge news if, like me, you wish you could play TIE Fighter again with modern graphics.