You did bring up the quantum effects, but you've since stated that you believe in determinism. And I'm not really arguing about whether we have free will or not, as that is irrelevant. We perceive ourselves as having free will to make decisions. Ironically, the cause for that perception does not matter.
However, using your definition of free will (autonomous and independent, as I recall. Correct me if I'm wrong.) the situation is not as clear cut if you consider how our consciousness is born. Autonomous to do what, and independent from what? What about random events that happen within the consciousness? It seemed to me you defined free will as akin to a point source, which is most definitely is not, if it exists.