ReSharper 3.0 beta
I've read a lot of comments promoting ReSharper as the "must-have" productivity tool for C# developers.
While I do dabble in C#, VB.NET is my bread and butter, and up until now, the only options I've tried are the free Refactor products from Developer Express.
I now see that the next version of ReSharper supports Visual Basic, so it will be interesting to compare the two products to see how they shape up.
One obvious difference is that as far as I can tell, the ReSharper product is only available commercially - eg. no free "lite" version that I can see.
Still, if the tool's as good as people say, then it could be money well spent.