OK, try not to laugh at me too hard... I run Cooper SLE 205 60 15's. It's a great highway tire and does very well on dirt as well.
They run about $65 a piece and last me about 20-25k. After the 2005 runs it's RSA's flat we will replace them with SLE's as well, permitting Cooper still makes them.
2000 ZX3 -Forest green, 99k, drive on dirt all the time- 16 miles of dirt to work daily
2005 ZX4- White, 215 miles, the "becareful" car!!