Hi Everyone. I'm completely new here. Love the site and forums. I'm awaiting delivery on my new 20" 2.66ghz iMac today. This will be my second Mac purchase, and my first was a 13" G4 iBook from a few years ago. I've got a few quick questions that I'm wondering about as I prepare to set up my new machine. 1) Is it always a good idea to buy an external hard drive that is the same size or bigger, than the hard drive in your computer? My new iMac is gonna have a 320gb drive in it, but I have a 250gb external. As of right now the hard drive on my current ibook is only at 55gb full. What' the best advice on this topic? 2) Will my new iMac ask me if I want to copy over data from my iBook upon setup? I'm obviously wanting to transfer over iTunes and iPhoto. I'm kinda scared about doing this though. I'm rather limited with my knowledge in this area. 3) Can I use a feature like "Time Capsule" with this external Western Digital drive that I have? I'd really like to be more forward thinking when it comes to backing up data from now on. I never did anything with my iBook I've had these past few years. I got lucky that I never encountered a problem. 4) Any other last minute tips I should known before setting everything up today? I'd just rather not find out later that I forgot something, or should have done things another way. Thanks for any help!