Visual Studio 2010 premium or better

Ghost Doc, helping me with writing good code

Star Uml, I’m not using this to generate code.

 Perforce Merge Tool (P4Merge), Aside from looking good it does it job very good. You can use this tool in Visual Studio!

Git, I use this for all my personal projects.

GitExtensions, integrates Git functionality in

Fake it Easy, helps me with writing unit tests.

Fiddler,  web test/debug tool, not quite wireshark, installs as proxy.

Selenium, to create web ui test scripts.

ILSpy, used to use Reflector but this is a good alternative. There are some plugins for reflector that are not yet available.