We only went to adsl from isdn last week, and the difference between 64k and 512k is amazing.... it's also around £60 cheaper per month for us too cos we were on a 24/7 scheme without cutoff on the isdn system.
I do still have my 56k modem under the desk which dials up whenever the primary net connection dies - going from 60k/sec to just 4k/sec downloads is, err, a bit slow
I see from the vote that you cannot choose both work network and broadband - some people I'm sure use both <whistles innocently>
-Alex