I'll join the Ludum Dare 41 compo, and will be hosting a real-world gathering at Resolution Games in Stockholm. If you're interested in joining, please e-mail me at martin at the company's domain (which is resolutiongames.com).

Tools I'm likely to use:

Unity as engine. Visual Studio for writing the C# code.

Pen and paper for drawing graphics. The scanner at the office to digitize it (if it works by then). GIMP for editing it.

Blender for 3D editing.

Zoom H2n for recording sound effects. Audacity for editing it.

FL Studio or Caustic 2 for the music, and possibly a guitar.

Most of this will be done on a desktop Windows machine. Maybe I'll use my laptop that runs Linux Mint as well, who knows?