Picked up a blue mini from the Apple store last night along with an armband and I have a few questions. I have both a PC (Desktop) and a Mac (iBook). I keep all my music on my PC due to having around 20 gigs. I synced my playlist in iTunes for Windows no problem, but will I be able to sync my contacts and calendar on the Mac without losing all my songs? Or can your iPod be in only one format at a time? My ideal situation would to be able to sync my music on the PC and then keep my address book and iCal on the Mac in sync on the iPod. My other question is say I have 2 playlists I keep in iTunes that I keep in sync with my iPod (both me and my fiancee use it). If we have some of the same songs in both of our playlists, will 2 copies of the song be created on the iPod, or will it see duplicates and only copy one to the iPod?