I use Mavic Ksyrium Elite's. They list for about $600, but can routinely be found in the $400-$450 range online or ebay. I weigh about 170, and ride in similar conditions to yours, and have liked the way they ride so well that I now have five sets (for different bikes). They have bladed spokes and cartridge bearings, which I was particularly pleased about, since I have 'taken a shine' to ceramic bearings, and have converted all sets over. I have two sets with grade3 and three with grade5. The grade three set increased my 'rollout' distance about 250ft on the same hill. I highly recommend the Elites, with or without the ceramic conversion!