I know nothing about routers or laptops really and I just bought a Toshiba laptop with Windows home 7. We have a home computer (PC) with satellite internet. I don't watch movies on the comp or play to many games. Our laptop would usually be run on the first floor and the comp is on the second, like 50 feet away from each other. Which router should I get? Also is it safe to buy one from Ebay? Or a used one? I am so uneducated about these things!