Hi,
Back to the original question about DVD's.
Yes, Chris Pye's video is excellent, but I find it is better at the initial conditioning of the tool. A complaint I have about it is that it leaves you feeling you have to spend $400 on stones. And oh, btw; Chris Pye has Norton stones w/ his name on it - so no wonder your left feeling this way.
There's another video that I've found that is unbelievable good; it's Everett Ellenwood's "Sharpening Simplified". He shows you how to hone just sabout any tool using the most simple, common sense setup. I cannot recomend that video enough.
I find that both video's are complimentary however. The Pye video is best at explaining how to get a mess of a carving chisel ground properly, and the Ellenwood video I believe is better at showing you how to hone and maintain it. So I would recomend both!
You don't have to purchase either video though. You can rent each for about $10 on Smartflix:
http://smartflix.com/store/video/5984/Woodcarving-With-Chris-Pye
http://smartflix.com/store/video/1090/Sharpening-Simplified
hope this helps,
JB