First of all, thanks for NCrunch, love it!
I find my self reaching for the NCrunch Tests window as if it was the Solution Explorer, trying to navigate to, or create, classes.
Maybe a stange feature for a test runner, but what do you think of adding a few simple project maintenance features to the tests window?
In the spirit of TDD this would be used for, and encourage, a test first approach to everything.
Example
"New class" (or "module" if that is a better name)
Would ask for a name
Create a class with that name in the appropriate namespace
Create a matching test class using a template from a configured test framework
Open the test class and leave you with the cursor in a position to start calling a method on a freshly create instance of the class.