Quote - Very helpful as well: many thanks. I have a feeling this is something that's gonna take dedicated study. :-)

Yes, it does.

I found for myself that I can't manage to get good lighting using IBL. However, I can manage to get some pretty decent looks with 4 or 5 infinite lights. So that's what I mostly use. 

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi