Also thought I'd mention that I am able to teach internationally using a free software download called Skype. This cost's as little as 2 cents a minute to use this service internationally. And is free within the US for audio or webcam service.
If interested in finding out about Skype here is the link:
http://www.skype.com/ [This message has been edited by Scott Langholff (edited 10-28-2007).]