Playing SimCity 4 was fun with a 1.83GHz Intel iMac. And when I got my new computer, I thought it would be even more fun with a 2.6GHz Intel Core 2 Duo MacBook Pro. I was wrong. It is SLOWER! The main reason is Leopard. I hope that an update is in the works because in Leopard 10.5.2, the is no transparency. What I mean is that when laying roads, you can not see where they are being built. Zoning is almost impossible because it dose not show the layout path. Laying pipes, don't even go there! Please make an update!