Shades of Gray?

I'm developing an idea about moral absolutes, but I would like to have the opinions of my readers regarding "Good and Evil" before publishing my final draft.

What are your views on the concepts of Good and Evil? Do you, like Nietzsche go beyond these concepts and meld into a world of circumstance? Do you maintain biblical standards of spiritual war? Is there some actions that are always wrong? Always right? Does Evil exist? Does Good exist? Must they exist together?

What do you think?