Jing

Jing is a screen capture open source software. I allows the user to capture and add comment to anything that can be seen on their computer screen. I allows the user to also make up to a five minute video. The resulting files can be hosted on the Jing site up to a maximum of 2 GB or saved and uploaded to a server. The quality is excellent. The interface is excellent. It is very easy to use and work in.

You have to experience it to believe it. Again it is free - it is legal - it is available. Give this one a try.