Was playing about with the 3D cameras, and can't quite find an obvious property, node, or function to have the camera rotate itself to center a 3D position in it's view.
I think you are searching for Spatial.look_at(): http://docs.godotengine.org/en/latest/classes/class_spatial.html?highlight=look_at#class-spatial-look-at
Camera inherits Spatial so it also has this function.
Yes, there it is. Thank you. X)