The wife and I bought a new Macbook about 5 weeks ago, an upgrade from a 12" G4 Power Book. We shared a user account before. So the question is should I split them up or no? The reasons for not splitting is iTunes and iPhoto library, but from what I read they can both be shared with read/write rights. But what about the address book, can that be shared with read/write? Also she uses safari and I use firefox, keeps items a little separate. For others out there in my situation, how do you go about it?