I am the proud owner of my first apple, a 15" alu PB. I am looking into getting myself an airport extreme basestation and have some questions. first what is the difference between the two models, one has a modem and one does not. I am planning on connecting via either dsl or cable and want to know if the built in modem will take the place of the cable modem, or what (if any) the modem will do to help me? I also have heard that you can set up a printer to print wirelessly via the airport network. Is this true? and where can I find a printer that can do this for me? Thanks for all your knowledge and help.