I've been thinking about this a lot the last twenty-four hours and think I've come to some hypotheses why so many Christians -- even many "liberal" ones -- find evolution so hard to believe.
I don't think it is really the matter of literal interpretations of the Bible. In a sense, no Christian is a literalist. Even many "fundamentalist" Evangelicals will say that the "fires" of hell are symbolic of eternal seperation from God, or something to that effect.
If not Biblical literalism, what is the reason why evolution is not readily accepted in Christian circles? The reason, I speculate, is not so much theological, but psychological.
Central to the Christian faith is the idea of a personal God. In other words, a God who takes a personal interest in you. By extension, it could be said that God takes a personal, special interest in the human species. Darwinian evolution, on the other hand, seems to imply that there really is nothing special about the human species, or any species. We are the products of chance and necessity through natural selection.
This view of human's "non-specialness" would imply, by extension, that there is nothing special about you as a person. (For if there is nothing special about our species, there certainly can't be anything special about you)
Now, if I was a Christian (which I am not) I would argue that God, existing outside of time, can still look upon the human race -- and individuals of our species -- as "special" even if the process used in the creation was, from a human, finite point of view, nothing special.
Discuss.
Bradley