Great find. Thanks.
BTW, you can embed the videos in your post using the Youtube icon in the editor toolbar. Just click the icon and paste the "code" after "v=" in the Youtube URL between the tags. To save a little screen real estate, you can wrap the embedded vids in a SPOILER tag. Eg:
Intelligent Key
[SPOILER][YOUTUBE]KJHbDgbpcEQ[/YOUTUBE][/SPOILER]
yields:
Intelligent Key