About to close in and drywall and need to put my wires and connections in. First question is,- what connections should I use? I have the BenQ PE770 projector and the Onkyo TX NR901 receiver. Don't have the Tivo, DirectTV, X-box and DVD player yet but will be adding them soon. On the back of my BenQ it has connections for: component video input (RCA) RGB/HDTV input component (BNC) Composite video input (RCA) S-Video input (mini DIN 4-pin) RS-232C input (for servicing) HDMI input Do I run cables for some of these? All of these? Or is that overkill and only need to run one or two? I installed a large junction box in the ceiling next to where the projector will mount. I can easily tuck away any extra or unused cable and connections in there. The distance the runs will be are 20 feet. Any suggestions on what brand of cable to purchase for this (decent quality but not throwing money away). Thanks ahead for any advice.