I am ready to Retire and wondered if i can Downgrade to just Internet speed's being 50 to 75 mbps ,enough for 2 computers? and also can i get an approved modem, purchashed out right from either Amazon or Walmart, to cut monthly rental cost. What Plans can i get to accomplish this. I have Xfinity X1 Starter package currently. I can do without the TV Box. Hardly ever watch TV live anymore anyhow.