I'd recommend the DVD set documenting the Willow Creek
International Bigfoot Symposium, held in 2003. The set was produced by Rick Noll and includes four beautiful disks. The price is $75. Sound quality is the only drawback, but that was outside of Noll's control. You can order the set
here. In terms of quality content, running time, and cost, I don't think you can do better. That's my pick.