Objective Morality from Evolution

Naturalism (atheism) seems to lead to the conclusion that objective morality does not exist. But in a world fraught with moral battles (fight for human rights, women's rights, civil rights, fight against genocide, etc.), atheism's amoral world seems to invalidate all such endeavors. But it would be an atheistic anathema to admit the necessity of God in order to have morals. Because of this, it has become fashionable (and perhaps necessary) to try to get to an objective morality apart from God. But is this possible? Many try to do this by attempting to ground morality in evolution. An example of such an attempt can be found on this NY Times article.  How would Christians respond to this?

O.T. God Reveals Himself So Explicitly..

The question goes something like this:
In the Old Testament, it seems like God revealed Himself all the time to people in scary and very explicit ways. How come He doesn't do that in the N.T.? In the Old Testament, God judges people and is quite scary. But the New Testament God doesn't seem to do that.. Are we talking about different Gods here?

Problem of Suffering / Pain

I've been asked a lot by non-Christians concerning the unfairness of God such as why a loving God would allow suffering (cancer, Holocuast, childhood mortality, etc.). I normally respond by saying that Jesus suffered the ultimate pain and unfair punishment by dying in our place on the cross so that we would not have eternal damnation. Are there other responses you would make and are there any resources or Bible verses to back up the views? Thanks in advance!

Christian View on Dating

What is the right Christian view on dating? Am I allowed to date anyone, or just Christians? What about someone within my church?