Here are some sample wheel builds and prices with discounted Velocity and Shimano parts. Many more options are possible.
Velocity Aerohead road rims, Shimano 105 hubs, DT Swiss butted spokes $324
Velocity Blunt SL 29er rims, Shimano XTR hubs, DT Swiss butted spokes $549
Velocity Blunt 35 29er rims, Shimano XT Hubs, DT Swiss butted spokes $389