My touring wheels are Velocity Synergy OC. They're a bit lighter than the Dyad and the off-center drilling has made for a reliable, maintenance-free wheel... so far. I used 32-hole rims mated to Shimano XTR hubs (found them for half-price; couldn't resist), DT Swiss Competition double-butted spokes, and brass nipples. Mount some Vittoria Voyager Hyper tires and you have a relatively light, fast-rolling wheel!

Unfortunately, the Synergy OC is no longer listed on the main Velocity USA website, though they're still be sold in the Velocity store... which may mean that they've been discontinued.