What I'm thinking of doing is running a long Cat5 that is constantly hooked up to my X-Box to the back of my desk. When I want to play Live, I'd simply unhook my USB connection between the computer and the modem, and hook in the Cat5. Would this work? Would I have to unplug the modem everytime I wanted to play Live? Would a long Cat5 slow the connection down? Where can I buy cheap Cat5 in long lengths (50'-100')? What's a Cat5e, and would it work?