Hi Knowledgeable Ones; I currently have an older DVD player and TV that have no HDMI inputs/outputs. Just component ins/outs, which look fine for a progressive DVD signal. I'm also getting ready to drywall my HT ceiling and have installed as many wires as I can to future-proof my HT setup. The large duct I've installed in my HT ceiling will help for future cabling needs, too. I'd like to know if the standard 3 component cables are OK for carrying Hi-def (1080i, 720p) signals, or do you need a specific HDMI cable? I'd need one about 25 feet long, and they seem to be scarce and expensive, unlike the component cables which are built in big lengths. These cables, by the way, are to connect my video source at the component rack to my front projector when I eventually get one. And, is there any big advantage to the HDMI system, as opposed to the component system? (I guess if they're the ONLY cable to carry Hi-def, that's an obvious answer, but I'm not sure on that yet). Thanks, Tom, Ottawa.