I seem to remember seeing a thread about a similar subject before, but can't seem to find it. I am awaiting delivery of my new 13" MBA, and selling on my old one. Apart from de-authorising iTunes, and erasing the HD after transferring all my data, are there any other things that I might need to do prior to selling? What would be the best way to connect my 2010 to the new 2012 to transfer my data? Thanks.