What Do I Need to Know?

What do I really need to know about Jesus to become one of His followers? Do I need to know about the Incarnation? The Cross? Forgiveness? The Resurrection? Do I need to know He's a Great Teacher, Healer, Prophet, God in the flesh? At what point am I ready to call myself a "Christian"? Is there anything else I need to know or do to begin following this Divine man who has captured me?