Thanks drlex, I will take a look at those links. Basically, I am interested in purchasing the 27" iMac, and currently I have two Windows XP machines. I just wanted to know whether the Windows machines would 'play ball' with the Time Capsule (which I also wish to buy). Again, thanks for the quick reply; I will have a read. I intend to use Snow Leopard 'as is' on the iMac (not dual boot with W7). I will be a complete novice to Snow Leopard and Macs.