iMovie/PiP/Powerpoint ????

A friend wants to hire me to make a movie with like a picture in picture of a powerpoint and someone talking about it at the same time. Is there any programs that let you do PiP with iMovie or do you need final cut, and can you export a powerpoint as like a mpeg, avi etc or something where you can import it into imovie?

Thanks

Well I found the PiP part of it

http://macupdate.com/info.php/id/10166

Thanks for sharing.