The you definately want Kumho ECSTA V710's (link). They make them in all sizes and offer AWESOME grip as long as you treat them right. Buy them from Tirerack.com and pay a little extra to have them heat cycled and they will last longer.

I had been considering those. I looked over a C-C and there are several threads detailing structural integrity issues with these tires. Those threads are all several years old though. They're okay now?

Yes. Kumho recalled all those tires and replaced them with an upgraded model. Jennifer runs V710's on her Miata and they stick like glue!