Videoconference in the classroom

The Potter's School uses videoconferencing in its classrooms: "Internet videoconferencing technology has made it possible for students to take live on-line courses from their homes."

This can probably be done with inexpensive equipment and services --

• A reasonably new PC
• A fairly large screen (or TV)
• A web cam
  
• A USB speakerphone
• QNext or Skype

Apparently the current version of Skype has videoconferencing built in.