Found something interesting on the Microsoft Research page about an automatic test generation tool that is being developed called "Pex."  Which is quit interesting, they have a screencast available for your viewing pleasure if you would like to watch it.  I think it holds a great deal of promise, when I write Unit tests that are very repetitive and it gets quit tiresome after a while of basically just copying and pasting.  Change a couple things, and then do it all over again.  This would solve that problem, but something I find kind of interesting is that it will offer a fix for certain issues. 

Here is what the Microsoft page says about it: "Pex (Program EXploration) is an intelligent assistant to the programmer. By automatically generating unit tests, it allows to find bugs early. In addition, it suggests to the programmer how to fix the bugs."

You can visit the Pex page here: http://research.microsoft.com/pex/