OK...so i finally ordered a cable modem setup for my house. Only thing is we have two(sometimes 3) computers...whats the best way to use that one cable line coming in for all the computers? (i dont want to pay the cable company 45 bucks a month for an additional modem/line) Should I just set up a little network? What do i need to do this? I want to do it as cheaply and as easily as possible. Is there another way to do it? Thanks very much for the help.