Thanks for all the replys… someone necromanced this thread so I think that I will continue giving feedback.
Some things have changed in maya 2012, the issue kpamir had about the light intensity value being clamped at 10000, is no longer there; now we can freely change the intensity of a light without plugging there a light temperature shader.
There is also a nice color managment scheme for mental ray, pretty straightforward but it’s nice to be able to gamma correct the overall render.
@SSTRiKERR: I have no plans (in a near future) of making a video-tutorial out of that setup, but I think that a .ma scene would be really useful, would you mind if I upload a “Sample scene” ?
@Sindo: It would be really nice if you post an image of your rendered piece 