Here's my everything bike -- commuter, weekend rides, whatever. I built it pretty econo: Used a Scattante frame from SuperGo, installed a new Simano bottom bracket and crank (Ultegra items that were being phased out), and all the Shimano components from my GT road bike (from back when GT was still an indie company). I typically commute four days a week on it and it's my trusty pal. We treat each other right.