I have recently bought and set up a time capsule (as router and backup) with my Macbook and iMac backing up through time machine. I have also attached an external hard drive to the time capsule, onto which I have copied itunes from the imac and the imac now uses this to store new films music etc. 1. How do I tell the Macbook to use the itunes on the back up drive as well as the imac? 2. Can I auto back up my wife's itunes (currently on the macbook) to the external hard drive, so that the iMac uses this back up as its data source? (She does not want to delete from macbook) 3. Can I auto back up iphoto (currently on the macbook) as noted for itunes above?