Add ListenToYouTube Freecorder to your browser:

And get these free recording tools:

Video Downloader: Download Videos from 1000s of sites, and save as MP3 files - as you watch.   Media Converter: Convert Videos to AVI, WMV, MPEG-4, MP3 and more. Audio too.
YouTube Downloader: Save high quality or mobile YouTube videos instantly.   Screen Recorder: Record ANY Video from an area of your screen.
Audio Recorder: Capture songs, MP3s and audio from any site or source.   Video Player: Integrates with FLV Player.