Im going to build my new pc tomorrow, but ive never done this before when ive had an iPhone. What exactly do i need to do to avoid any headaches when i start reinstalling iTunes etc regarding my phone? 1. Do i just "de-authorize" computer before uninstalling iTunes, then "authorize computer" when i plug phone into new build? Im just a little worried that i will rip this pc out, build a new one, and find my iPhone wont sync. 2. Regarding apps, do i just back up phone and save the backup folder and replace on the new build? Thanks for any advice.