Good news everyone! Unity, the rapid cross-platform game development tool used by the likes of Flashbang Studios and Infinite Ammo to create wonderful, technically advanced independent games has just been updated to version 2.5! Along with a slew of new features and improvements, the big news is that it is now available for Windows (being previously Mac-exclusive).
Unity features one-click deployment for Windows, Mac, Wii, Web, and iPhone, a great interface, full physics simulation, networking, and pretty much anything else you might need to painlessly make a full fledged, seemingly big budget 3D game. You can freely download a one month free trial of Unity from their website. For free!
Full Version 2.5 feature list here.
Alec’s thoughts on Unity here.