I have cable (Comcast.net). 1.5 Mbps up and 128 Kbps down. So it sounds like you should be twice as fast on uploads which can make a difference if you do a lot of file uploading. I see on average 1.2M down and 128K up. I have seen it as low as 400K down but that only lasted for a short time. The best I have seen is 2M down and that as well was for a short time. One question I would have is who will the ISP be with cable? I know you said that ATT cable company but they may not be the ISP.

I pay $50 for broadband and basic cable TV..........