The easiest way to add video to your site is by uploading to youtube and using the embed video code on your video...
To have your videos stream from your site you can use camtasia to create and upload flv files, or you can use ALLOCK FLV CONVERTER and SOCUSOFT FLV PLAYERS.
To Record Screen Capture Videos I Use
To Record Live Videos I Use
If You Would Like To Learn More About Making Money With Online Video... Click Here