A slight digrestion here, but worldspy offers you the ability to connect to them using a dsl modem. You'll need to supply your own modem and the wiring for you line. I just found this out recently and I'm in the works for this project.
I know of one person that is using it, dsl instead of dial up, and he says he always connects at 56k, no faster, no slower. Guess they limit you, but hey, it's free and without a time limit.
IceLiquid