I'd also recommend the RE-11s. I have a set of RE-01Rs for autox/track days and have nothing but good things to say. Wet/Dry traction is suberb, no noise, and good wear characteristics for a performance summer tire. From what I hear, the revised RE-11s are even better.
The selling point for me were the sidewalls. They are incredibly stiff which helps to limit sidewall deflection during cornering. And with cars as heavy as ours (my xi is a pig at close to 4000lbs), it's worth its weight in gold.