The roadie forum has a gajillion wheelset threads with companies like Boyd, Psimet, Soul, Williams coming up a lot. I've had good wheelsets from harriscyclery.com, spinlitecycling.com and a mechanic at the LBS. This forum used to be gaga for Mike Garcia at oddsandendos.com

If you have a good LBS, you may be able to have them build you a wheelset using parts you've bought. You could use the hubs on your B43 wheelset and save some money that way.

Really light rims like the Kinlins will work better if you add more spokes. They are the rims for weight weenie roadies that avoid hitting grains of sand in the road lest their wheels go out of true.

People try to drop weight by going with really light hubs but hubs aren't really rotating mass and it is penny wise and pound foolish to cheap out on hubs. That said, the Formula hubs I have are holding up well, have a classic look, and didn't break the bank.

Sapim CX-Ray spokes are great but damn expensive. Overkill for the vast majority of us not earning a living on the bike. DT Swiss Competitions or Sapim laser spokes are still very nice and not expensive.

Build quality is THE MOST IMPORTANT FACTOR to look for in a wheel. A well built wheel using dirt cheap components will outlast a poorly built wheel with the blingiest components.

And if you ocassionally pluck your spokes to check for tension and eyeball the rim as it turns past the brake pad or fork blade, you'll catch potential problems before disaster strikes and you've warped or tacoed the rim.

I'd go with some Velocity A23 rims, DT Swiss spokes (32 in 3 cross pattern) and Origin8 hubs and a builder that knows what he is doing.