Jerry Coyne has written an article in USA Today explaining in fairly clear terms the argument that we really do not have free will.
Posting the different opinions on this subject from the secular community is sort of like refereeing a boxing match. One camp (mainly scientists) are totally against the concept of free will (strict determinism), with the other camp (mainy philosophers) proposing some reasoned choice concept superimposed on determinism (compatibilism).
This blogger will continue to follow the ongoing discussion of this important and interesting issue and post any new insights expressed on the matter. For example, here is a link to a followup post on the article on Coyne's blog presenting reader comments and his responses to such.