Naaa......SAVE2PC is the best!
save2pc Light is a free tool that downloads videos from Youtube or Google Video and saves it as Avi or Mpeg or Flv file to your local computer.
save2pc allows you to easily grab and save desired youtube video. The user interface of save2pc is very simple, so you don't need any technical knowledge to use it. No need to use scripts for web browsers. Just run save2pc and start downloading!
It supports not only Youtube, but many other online video hosting services. And the pro version is really great, you can schedule downloading of vids as well as bulk downloading! I bought this app and i am really satisfied with it!