Halo: Supposed to be the most unbelievably great Video Conferencing system
Unfortunately it is outrageously expensive. Can't find the number online but I heard 50-100K.
"The Halo studio—designed by DreamWorks Animation in partnership with
HP—provides life-size, real-time, eye-to-eye conferencing with
outstanding audio and no delay. Halo gives the sense of being in the
same room together. And best of all, it's right down the hall." (from Introducing Halo)