Hi, I was about to buy a 20" iMac to use FCP on, but it seems kind of silly to buy one if Leopard suddenly comes out, and I need to spend more money to upgrade. Also there are new models coming out soon? But the recent ones only came out in September? Will Leopard come out when there are new iMac models or seperately? Not having any kind of release dates is not helpful. What would you suggest? What is going to be better about the new iMacs?