Try Skype! Skype is a fast emerging means of communicating across the internet. PC to PC communication is free and includes video capability. For nominal charges it is possible to call to and from regular phones through the internet.
I have used Skype to video conference with people in Europe and China. It’s easy to use, some set up is required as well as the obviouls hardware for video conferencing.
You’ll find out all you need at skype.com