I have an iPod 30gb video and want to buy a Nano to exercise/run with. What's the best/easiest way to use two iPods on iTunes? I'm using Windows XP, iTunes 8. If I hook up my nano, will it screw up my library? I'm using my iPod video to manually sync, can I set up the nano for use manually with playlists in the same library or no? Do I need to use both iPods manually now? I'm confused as to the best way to do this. What does everyone else do that uses two iPods?