I am learning about Mac's slowly but surely. I am going to get an iMac, it's just a matter of time. But if I know the Leopard is coming out for sure in Oct. then I'll wait it out. Afterall, it would be included in all Mac's once it comes out right? If I were to buy the new iMac before the release of the Leopard, would I be able to upgrade for free? If not, how much do you think it would cost to buy the Leopard?