A simple router with a 4 port switch, such as the linksys BEFSR41 would work fine. You'd plug in the Ethernet from the cable modem into the BEFSR41 and plug in your airport and printer into two of the four connections on the BEFSR41 -- you'll get the added protection of NAT and a HW based firewall as well as two additional Ethernet based products if you need to do so. "Tom Legare asks: I've joined the living and upgraded to high speed internet (cable modem service). Now my one Ethernet port on the Airport is taken for high speed internet, and I'm left without my wireless printing :( Will a simple Ethernet hub allow me to plug in the printer once again, or is it more complicated than that? Thanks, Tom"