Keepvid for Keeping video.

This site download and save videos directly from Youtube, Google, Metacafe, Putfile and more. Simply copy and paste the URL that you see on the site, and it will begin to download.  You have a choice of the type of download you will get but you also get to add these videos to web sites, or to other programs like Glogster.  It's quick and easy, and the instructions (where to put your URL address - web address) are easy.

But a word of warning, it does take a lot of time, and it depends how good your network connection is.  on the wireless, it's a killer.  It works better at their home.  Here are some instructions.