My isp offered me a westell model 2100 modem/router for $100. I thought i could find something better. I have some questions. 1) do all dsl modems offer the same performance? 2)I already have a router and plan on networking 2 computors together to share the internet. Will installing this modem that already has a router cause problems with a router i already plan on installing? 3)can anyone recommend a good dsl modem?