If you really want to go fast as hell: Azenis. Wear fast, not great in standing water, greasy when really hot, but they stick and are pretty cheap.
If you want great dry/wet traction and decent treadwear/price, go with the ZRi. Sticky, awesome in water, and dirt cheap. Like Kuhmo 712s or Yoko AVS ES100s, only better all-around.
If you can get a good deal, Goodyear makes some of the best tires out there, but they have appropriate prices. The Eagle F1 GS-D3 is possibly the best all-around street tire on the planet: expect to pay around $150 per tire.
The Bridgestone Potenza S-03 Pole Position is very popular among the Miata clan because it's an ultra-sticky summer that comes in smaller sizes (15s). It will stick as well as anything short of an R-compound Hoosier.
If you can get the GS-D3 for less, I'd probably go with the Goodyear.
