ZuneIt is a free YouTube/GoogleVideo video downloader plugin for Internet Explorer 6.0/7.0.
While you’re visiting a YouTube video, a single click can automatically download the video stream and convert it to Windows Media Video format for your own personal archival. It’s available from: http://sourceforge.net/project/showfiles.php?group_id=185239
Note however that YouTube recently changed the formats of its pages and has broken ZuneIt so you’ll want to wait until this Monday (June 11th) for a revised version that supports the new page. The issue was identified yesterday by Keertiss, ZuneIt’s author on SourceForge:
http://sourceforge.net/forum/forum.php?thread_id=1750269&forum_id=647080
