I have built several movies of my screen to show how to do tasks. People ask, "How do you do this?" The answer is very easy. Get yourself a cool tool and get busy!
First step: Create the Movie.
Download Camstudio. It is free, easy to use, and very cool. You can download it from http://camstudio.org/
Get version two. I installed it in a SVS layer. That helps me enable it when I need it and hide it when I don't.
Now you can easily create movies with Camstudio's many features. There is even a feature that can enhance your voice if you don't like your own.
Second Step: Edit the Movie
There is a very cool tool for this and most of us have it already installed.
It is called Microsoft movie maker. It is standard in Windows XP and Vista, and it is easy to use.
Import you movie, use split to cut in the movie. Use overlay's to paste the movies, and you can even add subtitles.
Then go to http://blip.tv and prepare to upload your movie. Create an account and upload your movies.
Then the Final Step
Share them with us. Share them on the Juice and teach other people how you do things.
And the best of all? All accepted movies get 10 points for each minute they last.