I got a new MacBook Pro several months ago. Up until now, I've always synched my iPhone up with my work computer (PC). My work PC has all of my backups currently on it (with apps, photos, contacts, etc), and I've never attempted connecting my iPhone to my MBP. I'd like to begin using my MBP as the main synching computer, as my MBP has all of my music on it (2000 or so songs). Problem is...my iPhone currently has no music on it...so I can't just backup my current iPhone on my MBP. Has anyone experienced this before? Any insight on how to properly transition to the MBP being my main synching source? Is there a way to connect my iPhone...transfer everything on it to the MBP's iTunes (minus music), and then transfer songs to the iPhone?