either fks 120 or next year's sth12. the fks has a pivot heel so its super safe, its relitively light, and one of the most durable bindings on the market. they're only $130 off sierrasnowboard.com. the salomon sth12 looks promising. it's bassed off the z12, so it may sshare some of its weight charecteristics, but its built much more durably, which was needed in the z12.it will probably be much more money than the fks though.
as for the px12 jib and deadbolt, i think the px12 is a safe bet, although it is 2.8 lbs. opposed to the fks's 2.3 lbs. as for the deadbolt, i think it is a good binding, even though it weighs only .1 lbs less than the px12. i do, however, think it is really over priced. for being $100 more than the fks it is not worth it. for example, if i was offered either the deadbolt of the fks for free, i would take the fks. the px12 may be a tiny bit cheaper than the fks, but it is overwhelmed by the fks's advantages.