Wow, this is damn near the exact bike I've been building in my head for a long time now, right down to the handlebar rando bag! I do an urban commute on a steel 26" wheel bike with Pasela's or on my Langster with Gatorskins. I love them both, but for different reasons. In my mind, a modern geometry titanium frame on 650b Hetre tires with disc brakes would make the perfect urban commuter. Can you please post your riding impressions? Is it worth a possible divorce?