Here's a cool video of the entire Elecraft K-line with the new KAT500 autotuner. It includes the K3 transceiver, P3 panadapter with external video, KPA500 amplifier, KAT500 auto tuner and W2 watt meter.
Elecraft K line at Dayton 2012 with KAT500 Autotuner - YouTube
Elecraft K line at Dayton 2012 with KAT500 Autotuner - YouTube