You can get Shimano Ultegra hubs laced to silver Mavic Open Pro wheels for about $153 for the front and $183 for the rear. Unless your wanting to spend a total of $200 for both wheels then that could be a tad harder to find. Nashbar has a set of Vuelta single speed road bike or track bike rims for $90 for the pair. They also have a pair of Mavic Aksium for geared bikes for $180.

Go here for details and to view other rims. http://www.nashbar.com/bikes/SubCate..._200276_200335