My friend has a Power PC G4 Power Mac. He recently received an iPod Touch for X-mas. He is running Tiger OS. He has no wireless card on the G4 so an ethernet port is needed. His daughter has a Macbook and is running "Snow Leopard" or "Leopard", I am not sure. Their current router is dying. Is Airport Extreme compatible with all of this? Is there a cheaper router I should consider buying? I want to get them a gift, but I want to know if Apple Airport Extreme allows for all of this or should I consider a cheaper solution? Remember the G4 running Tiger has no Ethernet card so a physical wire is required. Thanks in advance!