Currently the setup is: Cable Modem-->Airport Extreme Base Station-->Power Mac G5, with the G5 connected via ethernet from the built-in switch on the Base Station. There is no Airport Extreme Card in the G5. The Base Station is there for the occasional times when I bring a laptop home from work to service or borrow for a project. So there is no music being kept on any portables in the house. I would like to stream music from the G5 to a few rooms in the house and was thinking I could just add Airport Express units to these rooms (connected to the stereos, of course) and stream from the G5 out to the Expresses via the Airport Extreme Base Station that it is wired to. And Is there any point in having the Basestation at all at this point? I figure I could sell it and use the money to buy both an Extreme card for the G5 and an Express unit and be covered. Is this possible, assuming the modem is connected directly to at least one of the Express units?