spinergy Xaero PBOs...awesome riding feel and pretty light at about 1500 grams. PBO spokes are great for longer ride and/crappy roads. Should be about a pound lighter then the chuckers you are riding on so you will notice they spin up faster and seems better on the hills. I haven't seen any out of the saddle flex from them yet. I'm about 210 and stomp hard up hills.
http://www.spinergy.com/catalog/prod...products_id=83
http://www.spinergy.com/catalog/tech...feature_v2.php