My colleague Ren has put together a nice diagram of the basic components of a voluntary collective license, along the model that EFF has proposed. Even nicer, he's posted all the source files under Creative Commons license so others can rearrange or add to the diagram with their comments.
Don't think sampling will work? Add a few "bugs" to the picture.
Like hardware levies? Add them in.
Then, please share what you rip-mix-burn