The technical requirements for widespread deployment of broadband video over the Internet are rapidly being met. But a harder challenge remains: how can video-based technologies promote collaboration and learning? We present a case study: the MusicGrid Project. Running from 2002 to 2004 with partners in several Canadian and international locations, this modestly funded initiative ran over one hundred successful multi-site education and performance sessions. The rationale, development, and operation of the project are discussed, along with general lessons learned. We believe that our experience and the opportunities and issues identified will be useful to all those interested in large-scale, video-based collaboration projects.