http://www.nashbar.com/bikes/Catalog...erm=rhyno+lite
Decent wheelset, bomb proof but kind of heavy. If you can find the set that comes with the XT hubs it would be a killer deal.
Or if you want to get a bit pricier I would look at getting a set of Stans NoTubes 355 built up they come in a rim brake option still. You could go to your shop and ask them about Handpun wheels from QBP they're basically hand built wheels with a nice spec. My roommate got a set of 29er flows with Hope hubs for about $600 built which is a damn good deal.