Nic has blogged again about how much he likes Resharper.

We are a mixture of both here @ Kognition. Some are Resharper addicts I'm personally more of a CodeRush fiend. I love the templating features and code completion. It does piss me off sometimes by being a little too intelligent.

They now have a refactoring plugin that does most of the core Fowler refactorings and then a few more. But it does it in such a cool way....

Check this out... you just cut and paste!

http://www.devexpress.com/Products/NET/Refactor/RefactorEMSPWalkthrough.xml

It's also worth noting that CodeRush and Refactor support VB.Net as well as C#.