It plays just fine on my Mac mini as well as my PB17 so you shouldn't have any problems. In fact, I usually play it on the mini cuz I have the monitor set up and the Soundsticks plugged in.
It's a 1.42Ghz mini with 1GB of ram.
I do have the disc images mounted via Toast (from my external HD) though so it doesn't have to spin the mini's HD to run the CD.