I Recently replaced the stock Maxxis Columbire tires on my Cannondale Synapse Carbon 3 bike with a pair of the Hutchinson Intensive Kevlar Hardskins. These tires weigh about 15g more then the Maxxis. However, the Hutchinson's have a much smoother and quieter ride. Traction and high speed stability on dry roads is very good. I don't have enough mileage on the Hutchinson's to rate the mileage claim (6000km) or puncture resistence. However, so far I like them very much.
8/10/10 Update - I have been riding the tires for 8500+ miles and have not had a single flat! I have been getting about 5000 miles on the front tires and 2500 on the rear. Had one rear tire that got a snake bike (likely a sharp rock) in the sidewall that had to be replaced early. The tire didn't blow but must have damaged some cords in the sidewall enough to create a bulge. Great training tires though! Maybe a little heavy for racing.