Drilled and slotted rotors do nothing for the performance of your brakes. Get them only if you feel that you must have them for looks, and be aware that drilling and slotting may actually decrease the life of the rotors. In mild street use you may never have a problem, but drilling and slotting increases the possibility of rotors cracking along those machined areas.
If indeed you want to buy drilled and slotted rotors off ebay, they are usually priced at about $100.00 less then shown on this link.
Any plating that is done on the rotors (cad, zinc, anadozing, dacromat, etc) should only be considered as temperary. The friction face will have the coating removed within a few hundred miles. It will last a lot longer on other surfaces but if indeed you want the rotor to not eventually get a rusty look to it, paint it. Think of the coating as paint preperation. Caliper paint works well enough, as does barbeque paint. The paint is somewhat temporary too. You may want to touch it up after a couple of years. A little bit of overspray on the friction face will not hurt, but don't intentionally paint it. The paint will tend to contaminate the brake pads.
Edit:
I didn't catch it at first, but I thought the price was for rotors only. That isn't a bad price including metal master pads. Personally, I don't care for metal masters. Others have had better luck than I have.
Last edited by Big Jim; 02/16/05 11:21 PM.