There a several very good tires out there. I went with the recommendation from Car & Driver magazine's performance tire comparison test from their December 2005 issue - the Goodyear F1 GS-D3. They picked it because of its overall capability in both dry and wet. I love the tread design, too. They also have a very good wear rating, and they're less expensive than most comparable tires.
I would recommend getting a wheel alignment right after you replace the tires. I hadn't done this on previous cars, and found out too late that improper alignment caused my new tires to wear out thousands of miles before their time. I got a very elaborate and expensive 4 wheel alignment/corner balance, which I wouldn't recommend unless you're going to track the car (I just did my first DE). But I will say that in my case, before the new tires/alignment, my car had a vicious throttle-induced oversteer, which is now completely gone. The car is really a joy to drive now. Good luck.
