I just rebuilt a set of wheels using my existing hubs and I am into it for over $120 if I buy new spokes (I reused the old spokes but they are about 2mm short so I may replace) and nipples. Really hard to beat the $195 36 spoke CR18 with 105 touring wheel set on Velo Orange.
http://www.velo-orange.com/sh105plcrwhs.html
The CR18 not quite as strong as the Mavics but that price is smoking after seeing just how much it would cost buying the parts and assembling.