Some DSL modems are sensitive to garbace on your power lines. Specifically if you have any devices, such as electronic light dimmers in your house, they can kill your DSL connection.
DSL is generally slower than Cable, but not always.
I hate the cable company, have DSL, and am happy with it. I can move my computer to any room in the house without worrying about a cable connection.
I don't watch videos over the internet, except for the occasional movie preview or Freeper link, so I don't notice any speed lag. I do a lot of file downloading, sometimes 100 meg files, and haven't been concerned about speed.
Thanks for the info.
I will know more after I contact SBC/PacBell today on the DSL & wireless services...I may get one or both just as a backup for the cable service when it goes down when it rains again. LOL