Quote Originally Posted by vping
1. I have to get new rotors and wonder if the cross drilled or slotted are that much better than the OEM for road use.
2. If my pads are still fairly new should I replace them if I replace the rotors?
3. If answer to #2 is yes, what type of pads should I get? Semi-metallic?
Some people think that the drilled rotors can tend to warp more easily than the normal ones... I think slotted is a good compromise from what I've read. I will be getting some ATE slotted rotors next time mine need replacing but haven't had any problems with the standard ones so far.

I will always change discs and pads together, but I know a lot of people who have changed one or the other and not had problems. If the pad hasn't worn evenly on the old disc then it will have a negative effect on the new one... Personally, I'd do both.