Video (motion) screencap

I can't come up with the right term for this so I'll try to explain my question as well as I can. You know how pretty much all tutorial vids are made, a guy talks in to a microphone and then the video shows everything he does on the computer at the same time. Well what I'd like to know is how do you do this?

If you still didn't understand what I mean, I'm talking about recording your screen into a video. Just like when you press the 'Print Scrn' button on your keyboard and it takes a stillframe off your screen. But instead of taking a stillframe you would capture consecutive frames, a video.
If anyone knows how to do this please explain, this might be useful for other's as well. Thanks

Like this? http://www.instant-demo.com/?aid=6008

http://www.gadwin.com/printscreen/ ??

http://www.etrusoft.com/

Im not shure if those are it, it looks like what u want

www.fraps.com

That should do what u want, if im thinking about the right thing.

Yeah I think you are Luke.

Thanks a lot Made, Ben and Skipper! You all Made my day

I downloaded it from that etrusoft site Ben posted, registered it and it works like a charm.
If anyone wants help with the registration I can help you

Thanks again <3

Yes this can be closed now