Affiliate Marketing Secrets

I want to create a website where users can upload videos and I can make money by selling ads space in those videos, just like youtube hulu and daily motion does, except on a smaller scale. I don’t want to compete with youtube, hulu, daily motion, it’s for a particular niche. , just videos that users create and I want to be able to play ads as well so I can sell my own ad space (not ads by an ad network like Google)Does anyone know of software that can do this or any idea what it might take to create something like this?