I really need to take a look at this 
tool. For now - here's the announcement of the newest version. Feel free to 
comment your thoughts on this toos on this post.
"Greetings!
To bring in the New Year, a new version of Zanebug has just been 
released!!
For those that don't know - Zanebug is a free, NUnit compatible, 
feature-rich unit testing tool with a great UI and cool performance 
metrics.
Changes since 1.4.1 (and a very brief 1.4.2) include:
- Full support for NUnit 2.2
- Command line version is now available
- Enhanced run-time editing (category, expected exception, etc.)
- Ability to run multiple tests at once (command line version only - will 
be added to GUI version in next release)
- Selected tests are remembered across assembly reloads (no need to 
recheck / uncheck)
- Added well-formatted text summary (and the ability to save 
summary)
- Improved Xml output
- Tons of refactoring
- Greatly improved shadow copying and AppDomain functionality
- Enhanced API
- Bug fixes
-- Fixed the "File X or one of its dependencies could not be 
found"
-- Fixed the issue w/ custom Exceptions not being recognized within the 
ExpectedException attribute
I'm currently working on the next release, which will include:
- VS.NET integration
- HTML Reports
- Plugin architecture
- Developer's Guide
 
Please visit the Zanebug homepage for the latest download and 
documentation: