@Grimlock,
I apologize if I'm just repeating what has already been said, but I'm too lazy to read through the whole rest of the topic.
On one hand, you could easily say that humans are not free, as we are held by the restraints and expectations of society. Therefore, I suppose you could also say that, to an extent, our lives are pre-determined, as we have limited options due to those restraints and expectations.
On the other hand, however, freedom is a concept created by humans, and therefore, it can only sum up that which we can conceive. Would we create a concept that we have no way of achieving?
Some humans may believe that they are free if, for example, their choices and wants fall within the boundaries of society. However, I believe that freedom is simply an illusion, and no human is truly free.