I would like to set iTunes up for two users under the same OS X account. Can I do this? In other words can the two of us both plug in our ipods (one is a mini the other 20gb) and update our predetermined songs? Say for instance if she wants to listen to only classical and not rock and has all the rock unchecked, is there a way for me to plug my ipod in and update everything? Any help would be greatly appreciated...thanks!