I am a new, but huge fan, of the BDD approach to software development and "specification". I have been making use of xUnit.NET, Moq, and an extension to xUnit.NET that allows me to perform BDD-style testing (I'm using testing loosely, as its not really so much testing as it is specifying expected behavior). Currently, I run all my tests with ReSharper, and its nice seeing my specifications spelled out in detail and green across the board.
However, now that I'm using the BDD approach on a regular basis, I want a better reporting solution that can render all of the specifications for a system in a nice format that can be referenced as a form of documentation for new devs, during future refactorings, etc.
Does anyone know of any existing tools, preferably free, that can integrate with xUnit.NET to provide a nicely formatted report?