Hi, I just bought a MacBook Air. I have been using a PC all this time. I want to sync my iPhone to my new MacBook Air rather than my DHELL laptop. How can I back up my iPhone to an external hard drive and upload that file to my new MBA and restore from back up? If I just back up my itunes library from my PC to an external hard drive and upload all the itunes files to my new MBA will that take care of everything when I am syncing my iPhone? Any help would be much appreciated. Thank you in advance.