My son rigged up something through Yahoo on my dad's computer to talk
with by brother and his family in panama. When they signed in a little
banner would give an alert in the lower right corner to tell you they
were there on and we could talk to them fairly easily. but you had to
take turns, because the over-lap in voices was bad.

We didn't use video at the time, dad's computer was on dial up (and
still is) so vid would have been too much of a bog.

I think it's still available too isn't it? computer to computer??