I have started looking at video conferencing as we now have fast enough connections (and proper meeting rooms!) to support HD streams. Our company has a main office with dedicated board room in Penrose, Auckland, Smaller Office with Dedicated meeting room in Wellington and another branch in Albany, Auckland which has no dedicated room.
For the two offices with meeting rooms I was thinking of putting a 50" plasma on the wall with some kind of camera on top to run this. First thing that I can think of is Skype so maybe have a PC and high def web cam running. Not sure if this will work though as the microphone in a webcam may not be suitable for a large room.
Not really sure what's out there beyond that. Not wanting to spend heaps of a Polycom etc. system and what we choose must either be p2p or have a NZ node to route traffic.