This is my favourite youtube http://www.youtube.com/watch?v=v4zVFXP6dl0 How do I embed the actual video onto the wiki?

Embedding the video from YouTube into the wiki is really easy thanks to YouTube as they provide the code. Once you have located the video you wish to use on the YouTube site, there is a box to the right of the video player.
This box will have two fields. One with the code for the URL of the video and one for the code to embed the video. Copy the code to embed the video.
Next open the page on the wiki where you wish to embed the video. Click on easy edit. The easy edit toolbar has a video option in it. Click this box. Now simply paste the code into the box and click add video.
Once this is done, you can alter the size of the video screen to suit the page, the same way that you would reduce an image.