Thanks for the link. But what about using CAD-Software like Moi? ZBrush is (how should I put it) too "artsy" for me; I am more of a CAD and tech guy...

Or is ZBrush really better for complex hard surface models? I thought the contrary: CAD-like software for hard surface models and ZBrush or 3dCoat for organic things like humans, creatures etc. (And I am only interested in building hard surface type models).