IPv6 Training?

Does anyone know of any good IPv6 training resources (classroom, or self-guided)? Looking to send several 1st and 2nd tier guys, for some platform/vendor-agnostic training. Any clues? Thanks.. -- Alex Rubenstein, AR97, K2AHR, alex@nac.net, latency, Al Reuben Net Access Corporation, 800-NET-ME-36, http://www.nac.net