I was really impressed by this screencast that Thomas Nilsson did of him solving KataBowling. Quite apart from the skill with which he solves the programming problem, I like the format. I have previously tried to describe how I have solved other Kata, by writing long articles on codingdojo.org, like KataPotterByEmilyBache, but these articles are much harder to digest than this screencast Thomas has put together.
I have found out that he used a piece of software called wink to create the screencast, so I am currently working on one of my own. Watch this space!