Last spring I bought a set of these Sumo Tires from 1010tires.com and they have held up well and the price is unbeatable at $110 each for a W Speed Rated tire.
http://www.1010tires.com/tire.asp?ti...;2D09&pc=S5260
my initial concern when I first saw them was that the tire didn't come with alot of tread to start with but when I switched them last November there was enough thread to cheer about... tho I'll prolly order and install another pair sometime during the summer so when the Fall comes I'm not caught out driving on slicks.