My wife and I share a Mac and we have separate Apple ID's. I'd love to be able to create a user account for her and one for me, but have an overlap of which iTunes media and apps we've bought. More important is notifications and reminders and all that. If users aren't linked to an AppleID/iCloud then do they all get the same reminders as the ones that do? What I'd like is everything but media to be parsed out according to which iCloud/Apple ID is used for each user. That way our notifications, reminders, etc, all stay separate. But I'd like media to all be shared. Can anyone tip me off on how Apple is handling all this convolutedness in ML?