http://www.wantyoutube.com/ WANT youtube? Just type a "want"!

Wantyoutube allows you to download videos from almost all popular video sharing networks (Youtube, GoogleVideo, FC2, Myspace, Dailymotion, Youku, Tudou, Metacafe, Xvideos, Megavideo, etc.). You can download videos either by Wantyoutube.com OR use provided browser bookmarklet it gives to grab videos directly from the webpage.

• Wantyoutube can download videos from: Youtube, GoogleVideo, Break.com, Dailymotion, Blip.tv, Groper, Current TV, and dozens of other video sharing websites.
• Wantyoutube browser bookmarklet: Download videos directly from the video webpage.
• Wantyoutube add "want" to save videos: Download videos directly from adding a "want" to youtube URL.

Try http://www.wantyoutube.com/