The hub is one of the obvious signifiers of quality on a bicycle that lacks much of the rest of the groupset. Hubjub has a longstanding association with Phil Wood and White Industries in the states who between them can provide a hub for almost all applications.
We have supplied people with everything they need to do their first wheelbuild. If you are building a wheel and want a bit of advice to get started, just pick up the phone. A wheel with double sided hub is a great first project because dishing is taken out the equation - left and right spokes are the same length.