I'm getting ready to run all the A/V wiring for our new home. I have a Xantech HD88CC5 video/audio matrix switch that will feed some source inputs (ie SAT rcvrs, network music etc) to all displays from a central A/V closet. There will be multiple runs of mini RGB, Cat6 and coax. The longest run is 88 feet. The connection on the switch are RGB & one SPDIF for audio. My question is the SPDIF connections. It's RCA on each end (switch outputs/display inputs). Anyone know what cable I should use (one of the mini RGBs?, 75ohm coax?). Also does anyone know where I can purchase the male RCA connectors for this type of application? I'm open to all input as this is my first attempt at anything like this( ie where to buy mini-RGB, cat6, Coax etc). Thanks, Dave