Dungeon Siege 3 and its nearly expansion-sized DLC Treasures of the Sun are on sale today, with Dungeon Siege being 75% off, and the expansion 50% off (this is part of the current SquareEnix sale on Gamer's Gate).
I found Dungeon Siege 3 to be pretty good.
I wish I could find Dungeon Siege II as a digital download somewhere. I'm aware that Steam sells it, but only as part of their DS Complete pakage.
GamersGate also has all the Disciples games up to 75% off.
http://www.gamersgate.com/games?prio=relevance&q=disciplesmidweek