Here's my setup.
In the back of the house I have my office where the cable/modem and my primary pc are located.
Connected to the pc I have a VoIP 4-port router. To get networked out to the livingroom I ran two lines of CAT-5 under the house (so that's 3 ports taken up), one connection goes to the Xbox, the other goes to a Dell Wireless router that I set up in Access Point Mode.
I'm to the point now where I want at least one more wired connection out in the living room.
Can I use the wireless router already out there? I'd have to put in back in wireless router mode, and it would be a router behind a router (I don't know if that works or not). Or could I use a switch or something and leave the wireless router alone?