I have decided to use a second computer as a backup,so would like some advice.I am online with Comcast,and have my main computer here on the first floor.The backup computer will be in a 2nd floor room that has a Comcast connection. I have purchased a Linskys router and a Netgear PCI adapter 10/100 for the backup machine.The router I have installed down here next to my modem following the inst. that came with it. Now, I hope this isn't going to be a dumb question,but after I install the Netgear adapter in my backup machine upstairs,don't I need a hub to go through to hook up the coaxil cable,and then an ethernet cable from the hub to the machine? Thanks Keith