Suspicious? OMG...
VDownloader:
http://comunidad.uem.es/epuertas/post/2006/06/01/como-descargar-videos-youtube-google-video-y-grinvi
VideoDownloader (Firefox add-on):
https://addons.mozilla.org/sk/firefox/addon/2390

Thanks Steve for the heads-up on MAC friendly vid downloading.. I have yet to get it all working..but hope to soon..
G:)