Just got my 1st mac & trying to setup user accounts for my wife and myself: 1. seems like iTunes makes copies of all the songs for each user... is there a way to have just one source of music on the computer (save some space & share between the two of us? 2. what's the best way to share other files (ex. documents, spreadsheets, photos) 3. is there a way to synch iCal or Entourage calendars (e.g. I make a change in my calendar, then she can synch with my calendar and see both our entried on hers?) thanks a bunch!