" Heck, I think you can be an evolutionist and be a good Christian."
Depends if you think the bible is the inspired word of God. If you don't, then I question your understanding of either evolution of of Christianity.
Depends on if you think someone's interpretation of an aspect of the Bible is right, or that God is going to grade you on your understanding of cosmology.
Now, granted, if you don't believe in the Fall you might have trouble in believing you need a Saviour, or you might blame God for the suffering in the world, but I'm convinced that there are those who believe in common descent and an old Earth but recognize their sins, accept the Redemption; believe in the Resurrection, and believe that somehow, someway something man did is ultimately responsible for the bad.