Hello All, I bought a Fuji Cross Comp frame and carbon fork, to build up as a commuter. I have a nice road bike so this will be strictly for commuting 15 miles round trip.

I thought it would be a nice winter project and a way to learn. Problem is, I'm not sure where to begin.

I guess my plan is to buy parts on ebay, good quality but used or cheap. I can cobble it together and bring it to the LBS for a final go through.

Any suggestions of how to buy components, or even determine what to get? (I realize that's a pretty broad question)