Hi all, I'm not an annual upgrader, so I've got a few questions about upgrading from my current iPhone 4 (16 g; black) to my pre-ordered iPhone 6 (64 g; gold). I've been trying to go through my current phone to clean up contacts, notes, etc. I do regularly back it up to my Mac Mini. Once the new phone arrives, (I ordered from AT&T) do I need to just hook it up to the computer and sync? Also, I'll be trading in my current iPhone 4 through the AT&T program ($200!). I've read that I need to reset everything on the phone and take out the SIM card. Anything else I need to do to make sure my info doesn't get sent to AT&T when I send in the phone? Thanks!