Hey guys, i got a question, i am about to buy a sbc yahoo speedstream 5100 modem off of Ebay. It is only the modem and cables. It doesnt come with a disk, but that is my question, I already have Sbc yahoo dsl but i have a 2wire router/modem, i bought a new router and i want a modem. Does the modem need drivers or is that just plug it in and it does its job? If it is plug and play then im gonna buy it if it needs a installation cd then im going to buy one with an installation cd.Thanks for the help!!