i know they are not as robust as avid, vegas, premiere and so on... but it's free =). i just thought people should know about them.

this is where i found them:
http://www.linuxeq.com/ (scroll down to video editing)

http://heroinewarrior.com/cinelerra.php3
http://kdenlive.sourceforge.net/screenshots.php
http://lives.sourceforge.net/

none of them run on windows yet... but if you already have *nix or if you're already handy w/computer, it's a good alternative =).