If you have used ReSharper, you may want to take a look at Telerik's JustCode. JustCode is an agile development add-in for Visual Studio 2010 that enhances .NET development productivity by providing various features including code analysis, error checking, smart code navigation, code refactoring, and unit testing.

Here is a list of key features:

To learn more about how it works, check out this video.

Check out JustCode here