First off I am using disk inventory X and found out where all my space is going. I am apparently using 90 gigs in itunes. Besides just deleting it all, any other options? I have a 1tb airport extreme... Is there a way to move my itunes to that? Also, what the crap is previous systems?!? I have 16 gigs of space in that. I have about 20 different printer things, can those be deleted?