Yeah that scipt is prety good, but I like to have the control, CONTROL I TELLS YA, over it!
Theres also a nifty script on highend that inserts a gamma correction node into a texture chain for you which is pretty good if you need it, but as I dot really use it I would rarther do it manually so I can keep it in my mind what i'm doing.
"No pressure, no diamonds" Thomas Carlyle