Wheelbuilding takes a bit of practice. You can do it yourself or pay an expert. For commuting you should steer clear of factory pre-built wheels.
Although not local to you, this is what a decent bike shop would charge + lots of stuff you need to know about a pro wheelbuilder:
http://www.peterwhitecycles.com/Wheels.asp

Note he does sets of 32front/36rear. This is an excellent combo for regular use. More spokes = stronger wheel, and the rear is more highly stressed.