If you ever want to consider putting a video background into your website, here are some tutorial resources I came across from Paul Andrew's marketblog, Envato.com. They recently have put up the 'Master Video on Web Design' event and have provided lots of amazing resources for users.
The tutorials are clear and easy to follow. You may also like the 20 themes and templates they listed for video background.
HTML5 and CSS
Guidelines and site examples with full-screen or partial video background
Plugins for adding video to your site
20 themes and templates
