So got the new iMac and I'll use migration asst tonight to transfer from the old iMac. I want to give the old iMac to the kids so I'll deactivate iTunes on it delete a bunch of video and songs since the hard drive is full on it. The new iMac has a bigger hard drive so I'll activate iTunes and use that as my primary computer to sync iPads, phones and touches. I have about 400 gig in my iTunes library so I manually sync all six of our family devices. My understanding is the first time I sync with the new iMac I will be prompted to recopy everything to my devices. If I automatically sync it would take time but not be that big of a deal. But since I manually sync my understanding is that it will clear all six devices and I will need to remanually sync all of them which is a huge hassle. Is his true? Is there a way to avoid this. Thanks for the feedback from all the experts here.