OK, thanks to everyone for their input. I've selected to go with an Enkei wheel with a Bridgestone Potenza RE-11. No, I'm not sure if I should go with 17 or 18. I'd like for it to perform at its peak, but if I go to the 18, do I have to change the size of the brakes? What's better for performance, 17s or 18s? Also, trying not to pull the fender. I like the look of a tire that barely sticks out of the fender. Is there a way to get the look with a regular width tire?