So you have normal Road Runner cable modem service, going into a wireless router so you can share it with multiple computers?
You want some sort of security between your router and your computers, and only allow your computers to connect to the router. Otherwise you could have your neighbors gettin free cable modem service from ya.
11Mbps will be fine for sharing a cable modem, as you're only going to get like 1.5Mbps from the internet. If you going to be transferring files across your local network, then it may feel kinda slow, but it shouldn't be too bad.
