This is a great thread. I found it by searching because I am in the same boat. However, my commuter/errand bike is a FS Giant Trance. I ride with the suspension locked out and road tires. It is by far the most comfortable ride on the road I have experienced. The downside is that racks are pretty much a non-starter for me. I could go cargo trailer for big loads, but for smaller trips including quick grocery runs I need a backpack.