I have been renting a cable modem from Comcast. After thinking about all the money I am wasting I am now considering an actual purchase of a Modem. I am wondering how many of you on Cable internet still rent? Those of you who have purchased a modem what kind and how does it work? I have Comcast (xfinity) with power boost. I am getting download speeds with the rented one of about 22mbps. Will this speed up if i get one of the new standards out there? Docis3.0? Mine is so old, I have been renting since the pyramids where built, I am sure it is Docis2.0 at the newest. Thank you in advance.