This fall, I finally upgraded my three 3-yr-old iMacs to Leopard from Tiger. Aside from the weird way Apple went with wild cats as names and choose to go up quickly to the undisputed top cat in the food chain and then digressed to a lesser cat, the leopard, I have this to say: It was hardly worth the bother. Tiger worked fine up until I found a program that required Leopard. Now Snow Leopard, maybe never Snow Leopard, but Leopard. Does it run any better? Not on those boxes. Maybe on my brand new iMac, with its 64 bit capabilities – but so far, all this upgrading has been kind of a waste of money and feels a bit like Apple extortion. I say once you buy a computer, the operating system upgrades ought to be free forever after, especially if those upgrades get us any security upgrades.