Download and Convert Youtube Video Toolbar - 100% Free IE7 ready toolbar. Download and Convert Youtube Video Toolbar is, as its name says, a 100% Free IE7 ready toolbar that will allow you to download and convert Youtube videos.
Download and convert Youtube Flash Video (FLV file) for free:
Flash to AVI (divx, mp3).
Flash to MOV (MAC).
Flash to MP4 (IPOD,
psp).
Flash to 3GP (Mobile).
Flash to mp3 (Audio only).
It may also convert FLV to MPEG4 more faster and losslessy than a typical transcoder.
Requirements:
Internet Explorer
MP4 Converter
369 KB 
$ 30