Replying to Suggest a mac game for my sister.

So I'm just finishing up my Christmas shopping, and I need to find something for my sister. In the past I got her a puzzle game for her mac called "Bejewled" and she really likes it. If anybody has any suggestions of cool games that I could get for her mac I would really appreciate it. And it doesn't necessarily have to be a puzzle game, but nothing hardcore like spore or any fps games. Thanks a lot guys, hopefully you can help me out!

Happy holidays!