I purchased an iBook G4 and was wondering how to hook it up with my eMac to my cable modem. The iBook has AP Extreme and the eMac doesn't, but I am getting the new AirTunes Express when it is shipped. Is there someway that I can share the connection or do I have to plug and unplug the cable to use one or the other machines? What would be the best way to hook up the machines when I get the AP station?