A number of us are quite happy with Velocity rims and White Industries hubs.

http://forums.teamestrogen.com/showt...light=velocity
http://forums.teamestrogen.com/showt...light=velocity
http://forums.teamestrogen.com/showt...light=velocity

I think the critical issue is the low profile rim and the appropriate dble-butted spokes. I finally managed to take my new cross wheels out on a 48 mile groavel road ride, included some long stretches that were very rocky and some babyhead rock gardens in singletrack. The new wheels have Synergy rims which are a lower profile than the old Ritchey Aero rims, a traditional box shape. They rode like better and I arrived home without any hand or shoulders problems whatsoever. Those are the kind of rides where you realize how much the rim shape makes a difference.

If you go too crazy low on spoke count, you can end up having to use heavier rims for strength. Better to use light dble-butted spokes and a low profile rim.