I would love a "build your commute bike" option. I am a big fan of customizing a bike to my needs, and it would be cool to be able to start with a few basic frame choices and then start adding parts gizmos to it all in one web page. I like hunting for parts, but it is often a little time consuming. It would be fun to start with a Surly CC frame, for instance and then start selecting parts, mixing and matching until I found the balance between function and my budget.