I've just purchased a new Mac Pro. However, I've got an existing (2008) MacBook, that I've been using up till now as my "main machine". At this point, I'm wondering..... - Do I need to create a new Apple ID for my Mac Pro? - Can I use the same Apple ID on both my MP and MB? - If I bought a bunch of apps on my MacBook, can I avoid having to re-purchase them on my Mac Pro? I suppose I could do a Time Machine of my MacBook (Lion) account, load it up on Mac Pro (via Migration), and then re-download all my Mac App Store apps by using my MacBook's Apple ID. Honestly, I wish I could avoid this and do a clean Mavericks install on my Mac Pro. Thoughts?