Try this link wordy one:

http://home.columbus.rr.com/mwbaker/reviews/roadrunner.html

Tsuwm - I wonder if it faster than my ADSL line which is pretty zippy (currently running at 256,000 Kbps transmit and 576,000 kbps receive, although bandwidth shows even higher) - the only limiting factor seems to be the speed of my typos (oops!) I don't think that anything similar is available her yet, it would be very useful as ADSL and ISDN depend on some formula based on distance from the telephone exchange.