If you're looking for the track, I would suggest moving to a 17", or even 15" wheel. However, for the 18x10, here's the M/T I would recommend. It's the 305-35/18
Mickey Thompson Performance Tires & Wheels
Nitto 555R's are alright.. but really, they're not great at anything. They're OK on the street, they're OK in rain (if you MUST), and they're OK at the track. The M&H is a great D/D tire (again, except for rain). The M/T will wear out faster than the M&H on the street.
Contrary to what was said in the previous post, there's no such thing as a good drag radial for rain, and I would highly caution against driving a drag radial in the rain. If you get stuck in the rain, make sure traction control is OFF (if you leave it on and hydroplane, you'll spin out), and baby it. Drag radials are terrible in rain period, no matter how good you are at driving.