I'll probably get blasted for buying cheap eBay rotors, but I don't mind being the guinea pig. Besides, there seems to be two trains of thought: 1) Most rotors are essentially from the same blanks; just machined differently 2) Buying anything less than top shelf will kill you.
Without further ado, I present my new Brakenetic GT Series rotors:
Not much in the way of weight savings, with the fronts weighing ~30 lbs and the rears weighing ~19 lbs. I'll get these installed sometime this weekend hopefully.
I don't have any experience with aftermarket rotors, so I wouldn't know a quality slotted rotor if it bit me. If anybody wants info, more pictures, whatever, just let me know.