I've bought from Psimet. So far, the PowerTap wheel has been rock solid. No truing so far.

Locally, I prefer my LBS manager/mechanic here in the San Fernando valley. He built me up an Open Pro wheel, and two 80mm carbon tubular wheels and they've been great, too. No truing needed since. (PM me, and I'd be happy to give you contact info.)

And for what it's worth, I'm a clyde, so I like solid wheels.