Good news from Charlie Poole and the NUnit team… NUnit is Ready to Rock. NUnit Iteration Relase 2.2.3 is out and is compatible with .NET 2.0 and VS 2005! You no longer have to download latest and compile it yourself to run with .NET 2.0. Go check out the release notes for what they’ve added in addition to .NET 2.0 support. You’ll have to go grab it directly from SourceForge.net here as the NUnit download page hasn’t been updated yet with a link to the 2.2.3 release.
For those of who prefer an integrated unit testing experience, I’ve been successfully using TestDriven.NET 2.0 Beta for running NUnit tests inside VS 2005. You can grab it from Jamie Cansdale’s FolderShare.