VLC media player (free) works great for playing flash video files. Whatever program you use, just remember to add the .flv file extension to the google video file after you download it.
Cheers both of you... you're helping me get 'edumecated' about something I'm studying using google videos, and so I love you both and want to have your babies. (Except that's biologically impossible, me being a bloke and all).