Fiat Internet!

Finally, today the DSL connection has been installed in the new house.
I passed three weeks of deintoxication from “connection disease” (except for days passed in my workplace in Spoleto: DSL up and running).
Back online just in time to see the new AirPort Express, the new insane Apple “appliance” that works as an AirPort bridge and can remotely play music on any Hi Fi system and/or share a printer.
It will perfectly fit the new living room, managing iTunes via Sailing Clicker. (I’m a nerd… I know…)
I just don’t understand if I have to buy a standard base station (right now, my old desktop G4 works as base station in the house) in order to use one or two additional Express Stations.