I use wvdial, no problem, but is there a good way for non-techies like my sister?

gonna use luddite on her old laptop.

can gnome-ppp or such tools be used with wvdial.conf?

I believe gnome-ppp is included by default. There have been some reports of problems this release, so hopefully it works for you.

gnome-ppp sounds like you have a little statue in the garden with a bladder problem __{{emoticon}}__

__{{emoticon}}__
Sure. Could not get it to work either.
And get it set up with a mobile internet modem, messing with ppp files? Never.
I made a simple script that can be clicked on from icewm-rox. it uses gksu to start a terminal which does

wvdial net (appropriate section of wvdial)

primitive but now one can connect by clicking and entering root password..