OK, so I got a new iMac...my first one. I love it. I have successfully transferred all my music and my photos, some videos, and a movie. I am going to do one last sync of my iPad and my iPhone on my PC before I connect them to iTunes on my iMac. Is that all I need to do? Will the iMac make its own back up of both devices (oh, and my iPod! I almost forgot about it.) and then from that point forward I can sync with my iMac??? I don't want to lose my contacts (although they sync with Google) nor my calendars. Should I just go for it knowing I have back-ups on my PC? Please advise. iThanks!