Accepting determinism does not require rejecting free will. At this point, I don't think that the concept of free will is particularly useful whether affirmed or denied. Notions of morality that depend on actions being made by free will to justify punishment or reward seem outdated and simplistic to me, while on the other side, using determinism to justify some sort of nihilistic worldview is also silly.
The way I think about free will is probably best described in the book A New Kind of Science, in the section called The Phenomenon of Free Will (readable online). The easiest way to come to understand this perspective I think would be to read the book Creation: Life and How to Make It. I'd highly recommend it.
I also find some Buddhist concepts to be quite enlightening (pun intended), particularly the ideas of no-self and of interdependent co-arising. Wikipedia really isn't the best way to get acquainted with these ideas, but I've linked you to it anyway. Let me know if you have any questions about it.