My house is wired with cat5 wires all throughout the house and I have a DSL internet connection. I was wondeing if there was any way I could add a second modem. The 1st one is down stairs and is connected to a router which is sending wireless to the house, but I want to have an ethernet connection to my new computer, so I rewired the RJ-11 port in my room for the DSl and was going to plug another modem into it. My question is will this work and if so will it affect the bills?