essential tools for .net programmer?

Question

This question looks familiar with this: http://stackoverflow.com/questions/2187/essential-programming-tools, but I want to focus on .NET programming. Beyond Windows and Visual Studio, which tools are your daily-need to get your job done? Free, open-source code tools are preferred :)

I've been using these tools:

• Resharper - top of its class, but not free
• NUnit - trying to get used with it.
• VisualSVN + TortoiseSVN

which other tools I should know and use?

Answer 1

http://www.hanselman.com/tools

Scroll down to section: A (.NET) Developer's Life

Answer 2

Expresso: Regular expression tool with .NET syntax.

LinqPad: +1 from Hanselmans's post above.

Answer 3

My recommendations

Firebug

Reflector

Anjlab SQL Server Profiler or even Microsoft SQL Server Profiler

PowerCommands

Visual Studio 2010 Pro Power Tools

Studio Styles