Xantech's four-source HD44CC5 High Definition Component Video Matrix Switcher let's you send four streams of high-definition 1080i video and digital audio up to 1000 feet over CAT5. You'll need a HDRXGS01 CAT5 receiver in each zone. The receiver automatically senses the cable run length in 20-feet increments and self-adjusts for best picture quality. The HD44CC5 is coming in January 2007 for $1895. Each receiver is $250.