NUnit - www.nunit.org/
Beyond Compare - www.scootersoftware.com/
Cruise Control - http://cruisecontrol.sourceforge.net
CC Tray
Test Driven .NET - www.testdriven.net/
7Zip - www.7-zip.org/
ReSharper - www.jetbrains.com/resharper/
SQL Prompt - www.red-gate.com/Products/SQL_Prompt/index.htm
Windows Live Writer - http://windowslivewriter.spaces.live.com/
MOQ - http://code.google.com/p/moq/
Firebug - www.getfirebug.com/
Tortoise SVN - http://tortoisesvn.tigris.org/
Subversion - http://subversion.tigris.org
Paint.NET - www.getpaint.net/
Visual Studio 2008 Professional / Team Systems - http://msdn.microsoft.com/en-us/vstudio/default.aspx
Visual Studio 2008 Express Editions www.microsoft.com/Express/
Microsoft Visual Studio 2008 Shell (isolated mode) Redistributable Package - http://tinyurl.com/2x5efr
NAnt - www.nant.sourceforge.net/
NCover - www.ncover.org/
NDepend - www.ndepend.com/
PowerShell - www.microsoft.com/windowsserver2003/technologies/management/powershell/default.mspx