Selle italia Trans AM -bought it yesterday, nice saddle!
Serfas RX (but not if you're a Clydesadale)
WTB Speed V (the $60 one with leather, or $80 with Ti)
Brooks B17 Champion Special (the 03 models are on sale, the 04 models will be about $30 more)

Brooks is my first choice, trans Am would be 2nd. There is a version of the B17 with springs....