Go to Peterwhitecycles.com and look up the least expensive road hubs he has,Tiagra, I think you can get the whole thing built up with butted spokes and CR18 rims for just under $300 with shipping.

Quick look here brought these up for about the same price. I'd go for the PeterWhites with CR18 rims and butted spokes

http://www.bikeman.com/WE7288.html

http://www.bikeman.com/WE7289.html