You should check with
Tire Rack before you buy tires. They specialize in performance tires and they have really good prices. Goodyear F1-DS3's are $132 (front) and $185 (rear) or a little over $600 for all 4 corners (all-seasons are $130 (front) and $173 (rear)). The tire of choice lately seems to be Bridgestone RE-01Rs which have a higher wear rating than stock and seem to provide better grip than anything else.