To save you a little bit of time with dealing with comcast, comcast's basic hi-speed internet allows for a maximum of 4MB in both upload and download speeds. They do not limit p2p applications or put a squeeze on the bandwidth when you're using p2p programs. There is also no monthly limit as to how much you can download or upload. Hopefully this will save you an hour or two in dealing with the fine folks at comcast .. I spent about 2 hours with the tech people on the phone last week while they tried to find answers to those relatively simple questions. Good help is hard to find apparently.