I want to have the choice to sync or not when I connect my ipad to itunes. I am trying to turn off automatic syncing is this the correct way to do it? edit< preferences<devices and check the little box that says "prevents ipods, iphones, and ipads from syncing automatically". If I want to add new content to the ipad like a movie or an app or a book without resyncing everything how do I do it? Would this work if I was switching between 2 itunes accounts?