Thanks for the research. But I'm afraid of that chaffing uner my boot and stuff, especially when moving legs arround a lot. I was thinking of "modifying" some BMX ones by sawing and sewing. But so far, I haven't fell on my knees a lot...or they are so tough I didn't feel it. :P But I figure now that I said so...the first time I go to a big rail, it's gonna happen!
Burton makes some good ones that are kneepads. That's what the SA team rocks
Basic Knee Pad | Burton Snowboards