Go get World of Goo. No Seriously. Do it now.
SWMBO - a card carrying luddite - she hates technology so much she could be in IBM marketing - actually was able to download, install and play World of Goo on her Mac. And loves it. Like I cant get her hands off the keyboard. Think: Lemmings, crossed with Da Blob. Cheap (20 bucks cheap), two man development team, and a fantastic game. You stone-age PC folks can play it too.