Still on a Mac.
I've never been a big gamer, tho, so that lack of games doesn't bother me. Most games are too linear for me. My favorite thing about GR--and about games in a similar vein, like Deus Ex--is the playing field is completely open. GR puts you on the map, and how to accomplish the goals is completely up to you. I love that: I have to think instead of just run through a scripted maze and shoot things. I've tried some other games, like Max Payne and Prey, played them through once, and never played them again.
Lately I've been flight simming with X-Plane, and I'm loving that.