I'm reworking my GT Xizang, a vintage titanium front-suspension mountain bike, to use for short touring. I'm looking to build a pair of touring wheels, and wonder what you guys suggest for hubs.

I've been running Shimano XTR hubs front and rear, in 32-spoke Mavic 717 rims. But I recently got a Mavic 719 36-spoke rim for building up a new rear wheel. I still need to buy a rear hub. Is there something that would be more durable and reliable under a load?