[CentOS] Audio/video recording software

Hi everyone! :-)

I am supposed to get (for the first time) into the world of making youtube 
clips. I have a webcam, a microphone and a big hard drive configured and ready. 
The question is: what would you suggest as an easy-to-use yum-installable app 
that could handle a couple of minutes/hours of recording?

People who are about to use it are complete noobs, and I would like to give 
them a user interface of type "start the program, press record, talk for a 
while, press stop, press save, quit the program". That is, if something like 
that exists for CentOS (version 5.6, if it matters).

I don't mind proprietary/patented/nonfree A/V formats, codecs and stuff. 
Anything goes, of a typical amateur youtube quality. I just need something 
that generates video clips in the simplest way possible.

Any recommendations?

TIA, :-)
Marko