There's not much time left, and I wish I knew how much - but for now, you can still buy the Telltale Games Great Adventure Bundle 2010.
http://www.telltalegames.com/adventurebundle
For $20 ($5 of which goes to charity), you get
The Whispered World
Jack Keane
King's Quest Collection
Penny Arcade Adventures Ep. 1
Puzzle Agent
And, just maybe, Sam & Max Season 2.