Well, if you don't want your rotor worn as fast, go for "organic" or "kevlar" compound pads. They will have no metalic compound in them.
Your rotor will still wear, just not quite as fast, and you will most likely have more brake dust to be keeping cleaned off of your wheels.
There are many places to get them.
You can find them on flea-bay, probably cheaper than from your local stealer.
