@Briancrc,
My position on this topic can be summarized in two points:
1. Determinism is a rather dated belief system, a sort of religion really, not a proven fact. Actually, modern science -- eg quantum physics -- contradicts determinism. There is no reason to assume that the future is entirely predictable or "contained in the past", and that includes our own thoughts and decisions, which are partly haphazard and undertermined by the past. In that sense, our thoughts are partly "free". They have a certain "degree of freedom", not being entirely determined by the past.
2. The mind exists for a reason: it performs tasks that cannot be done without it, one of which is taking decisions, i.e. making choices, acting on them consistently etc. Furthermore, the mind can do so if and only if it is somewhat autonomous in its deliberations. Otherwise it would bring no value added and would just be a waste.
The combination of these two points is what I call "free will": the capacity for the mind to take decisions in a semi-autonomous way, decisions that are ultimately unpredictable and neither entirely determined by biology, nor by society and our past interactions with it.