maxshenfield

We use LINQPad as a scripting platform for C#. It's the best tool we've found to try out new ideas without the pain of creating a new solution in Visual Studio (though scriptcs is coming up). LINQPad

C# is the most productive production language - it exposes a lot of functional conveniences along with the robustness of strong typing. And they're finally embracing the open source community - a huge plus.

We use the basic syntax (for, foreach, if,while) and object oriented constructs (classes, very simple inheritance).

We also use lambdas and block methods extensively, an intermediate level programming construct, but in a very formulaic and predictable way. C#

Our default development environment - comes prepackaged with a huge suite of tools and plugins. Coupled with ReSharper it is pretty hard to beat. Visual Studio

Managing script output and input, as well as data cleansing. Microsoft SQL Server

Project management and version control. Great, fun tool that lets you easily integrate a distributed version control (with awesome tracking functionality) into your system. GitHub