I'm looking at getting the new Snow Leopard but I'm wondering what the plus sides would be. Would it take up much hard disk space compared to Tiger? Would it effect any of my applications, iWork, iLife and other design programs (Quark Passport)? I've backed up my laptop on to an external anyway. Also will it run better? I was wondering if I could wipe my mac when I install Snow Leopard. Means I can give it a good clear out and put only what I need on there. I realise now that I have a load of crap on it. I only have 6GB left of hard drive. Another stupid question. If I wipe my mac and use the iTunes store will it be the same machine that is authorised to my account? This is only a short term thing as I'm waiting for the next generation of iMacs. If anyone has any news on that I'd love to hear it too! Thanks to anyone who responds!!