When I get a vanilla Windows system, there\'s a bunch of stuff I change to make it more developer-friendly.
Some of it I remember every time, other stuff I only do as an
I install some set of *nix command utilities and process explorer at a bare minimum.
Also, on XP systems I disable any theming and use the windows classic coloration. Vista just doesn't look or work right without the Aero theme so I can't do that on Vista without going almost completely nuts.
Also forgot, I install Chrome. (Used to be Firefox but Chrome is nicer out of the box)