right now i have sun rhinos on xt disc hubs, i like the hubs, but the wheels are about done
im not a real heavy clyde (215 lbs) and i ride pretty lite, im looking for something very dependable and long lasting... tubeless may not be for me yet, judging by a lot of the stuff ive read, though...
WARNING: Riding with improperly adjusted brakes or bake pads is dangerous and can result in serious injury or death.
You can buy a brand new wheel set with 819 (if you think that you could get by with them you would save 1/2 pound) or 823 rims and XT hubs for under three hundred dollars so i would not worry about keeping the hubs. I have found that UST rims matched to UST tires with a couple of scoops of Stan's is almost trouble free while converting with the Stan's system can be tricky.
I'm a big fan of Continental Vertical UST tires for my riding. They are currently on a Stan's converted set of Sun Singletrack rims. However, I've got a new set of Mavic XM819s on Hope Pro2s on the way.