Great input everyone!

Les, my personal use is: aggressive street driving with occassional autocross. Most likely not any track days. I have Mickey Thompson ET Street Radials for drag racing. I store the car through the winter, so I almost never drive it in temps below 50 degrees F, but I do want something that doesn't need warm up laps to stick. Also, my car is black and I have another daily driver, so I typically do not drive it in the rain. I may get caught out in the rain occasionally, particularly if I have driven it on a busines trip.

These opinions are definitely helping me choose what tires to buy next, but I didn't want this to be another "what tires should I buy" thread. I wanted it to be a more generic thread where we post our experience and reviews of tires in the applicable range, and everyone can use the info to decide what fits their uses best.