check out http://bicyclewheels.com/
Not much of a website, but one of the cheapest out there. Prices range 105-150, $25 shipping CONUS via
they use formula hubs.
I’ve used the weinmann DP18 36h set for 5 years before shelving my bike… 1/16″ of separation of the braking surface, but have remained true and round with minimal adjustment and maximum abuse. I also recommend 25’s instead of 23’s if they’re going on the street. I have Panaracer Tserv 28’s on there now and love them.
That said, there are certainly lighter wheels out there, sometimes I get a little sick of the high rolling mass, but I’m usually commuting with so much … that it doesn’t matter how heavy the bike is. (that is, when I used to commute)