What is an HDMI input?


Sorry to have to ask this "chowder-head" question! But for a variety of reasons, I spend my money on 2 channel gear, and my older Pioneer rear projection non-HDTV [50"] serves my needs quite well. In fact, I still play primarily laser discs! Video doesn't get my "Ya Ya's out" like audio does.
fatparrot
http://www.superaudio-cd.com/newsitem.php?=88
Looks as if HDMI 1.2 will handle both sa-cd and dvd-a 5.1.
Gentlemen,
For your information - Radio Shack is apparently going with Monster brand cables in the future (go figure), so they are blowing out their Rat Shack brand HDMI and DVI cables stupid cheap - like $12.99, from $120. Get 'em while they last - I picked up a bunch for friends for the future -
15-1064 - 12 ft DVI
There's a 6 ft. DVI for the same price - don't know the part number.
15-1085 - 6 ft HDMI
My cable box has a DVI output. My TV has HDMI input. Is there any rational for using a DVI --> HDMI cable, and using interconnects from set top to TV? Or am I better off simply using component cabling? (All runs under 2 meters.)