Right now I'm using Comcast/Formerly Adelphia cable and have to say I've had pretty good service. I also keep a $10 a month dial-up account with Bell South (ATT) that I use on the rare occasion Adelphia/Comcast went out. Also works when I'm out with a customer who can't connect and I'll use the dialup as a test. And other uses.
Just the other day, however, I lost the broadband sig and had to put up with the BS dialup for 4 days.
There is a special BellSouth DSL offer that they were required to put out for $10 and I wondered if there was any reason why I couldn't have the DSL sitting there for use when the cable goes out.
It would also continue to give me the dialup BU since that's included with all their DSL.
Here's the link and I have one customer who actually got it for the $10. Swithched from Earthlink dial-up to this.