The only thing with cable is obviously having the phone too, but I have been with cable for nearly 8 years and was one of the first persons I know to start with broadband way back. On dial up the futher you live from the exchange then your speed drops. I enquired on the offchance and the most I could get on dial up is 4 meg so not for me. Not so with cable as it's fibre optic cable. They have plans for a 50 meg connection within the next 12 months-yowser.
Good site:
Samknows Broadband - Comprehensive Broadband Information