CAA: Christian Anime Alliance

(If this is in the wrong place, I apologize)
I'm interested in buying a game for my iBook, as it's come to my attention recently that I don't own many (games, not iBooks). Problem is, I've fallen a bit behind on what games are available to Macs, and which are Windows exclusive.
Does anyone know if the following games are (or will be) available to Macintosh systems?

No One Lives Forever 2
Star Wars: Knights of the Old Republic 1 or 2
Guild Wars
Psychonauts

If anyone has any other suggestions, it would be much appreciated.

World of Warcraft will work on Mac. Getitgetitgetitgetitgetit!

I was thinking about getting that one, but it has a monthly subsciption fee. Those things don't agree with me very well, I'd prefer to just pay for my game and be done with it.

NOLF2 is on the Mac; I have it.

I don't know about the others.

I think KOTOR 1 is the only other one you'll find, but its selling at full price ($40-$50) some places.

Shoot, I wonder if the rest would work on a lower end PC. I was looking forward to Guild Wars.