Step 5: Camera Rigs
Shakycam: Essentially a piece of wood. Indy Mogul instructions
Dolly: Indy mogul made one HERE
Dolly: Instructions for a track-mounted one
There's loads of great ways to make a crane. Google for some, as which type depends on how much money you have.
Tripods are essential when using a green screen: Here's a video made using a greenscreen and tripod: