Converting movies onto ipods

I have an Ipod Nano 3rd generation. I know you can buy movies on itunes, but how do you put movies and videos from your computer?
Is there a program or something I can download for free?

Please help, thanks.=]

You have to convert videos to .mp4. I'm not sure how though, there should be programs that let you. Search it on Google.

I convert videos for my Sony PSP but it is the same principal.

Red Kawa has a free program called Video 9 which will convert videos to a usable format for your iPod.

You just need to convert your movie to mp4 video, then you can add it to iTunes library and sycn to your iPod. If you don't know how to do that, here is as tep by step guide for you
http://www.top5soft.com/tutorial/how-to-convert-dvd-movie-to-ipod-with-cucusoft.html