Baggins... a thought occurs to me. Rather than using the fresnel effect on all the object materials, in order to give more accurate specular effects; could it not be pluged into the specular channel of the lights themselves? By making the specular channel of the light behave properly, then it would save having to do it to each and every object we find in our scene.

Just a thought, and I realise it's entirely possible that this wouldn't solve anything.

JonTheCelt