Chirs, I have nothing but good things to say about my Nitto's
First off, they totaly eliminated that annoying road noise that I had with my Dunlop 9000's.
Secondly, they grip almost (if not as well) as my drag radials.
And third, they are surprisingly long lasting (despite my burnout fetish).
The ones I was thinking of trying next were the Nitto INVO:
Nitto Tire - High Performance Tires for Car and Truck Enthusiasts
Notice how they compared to my NT555's (which I can already vouch for).
Just by looking at the comparison chart I can almost guarantee that the INVO's are probably going to be your best bet for all around performance.