[nearmiss]

videomaker.com has a learning section where Green Screen is covered pretty well.

Also, there are a bunch of tutors on youtube

Search GreenScreen Chromakey Vegas

Vegas is what I use for my editing my videos.

(of real people and real world stuff)

I've got backdrops, foldout green screens, etc. to work with video.

I know this isn't much help, but it was basically just to let you know there is all kinds of information out there in internet land.

Mess around with the google and you'll eventually find what you need.