Ive learned in FCP and in Shake (gotta love student discounts) there is a nifty little thing called difference matte, where you take a reference frame, and then compare it to your video. It keys out all the backround, as long as the camera remains still.
How well does it work? Im not in the position right now to try it, im working like crazy to finsih up a project due tmr. looking back, our green screen worked OK, not the best. I love the primatte keyer, but if the difference keyer works just as well thatd totally rule.
I only post here because i cant remember which other NLE's ive worked on have this, and i never messed with it.
Thanks in advance.