Hi there, I am going to be purchasing a MacBook this summer / in the next few weeks. I already have an iMac (Late 08') 20" 2.4GHz model. My cousin is willing to have a look at Macs and purchase mine if she likes it. I have told her that I would give a lend to her for it for a few weeks to get the hang of it and then she can tell me whether she wants to buy it. What is the best way to go around backing up all my data? I don't have an external hard-drive - I want it so that it will be a fresh install for her so she can get the "full" mac experience How can I do all of the things mentioned above? Thanks guys. Also - does the current high end MacBook perform better than the late 08' 2.4GHZ model? Anyone have any benchmarks?