I have a DVD player, HDTV DVR and a PS2. There are only 2 comp video connections on the back of the 950. If I connect the PS2 via S-video, do I need to run compnent video AND S-video to my projector. I am not worried about up conversion, I will soon have a video processor for that but if I decide to by the 950/770 combo, I want to know if I need to run more than one cable to the projector.