Openframeworks is a c++ library designed to assist the creative process by providing a simple and intuitive framework for experimentation.

The library is designed to work as a general purpose glue, and wraps together several commonly used libraries under a tidy interface: openGL for graphics, rtAudio for audio input and output, freeType for fonts,freeImage for image input and output, quicktime for video playing and sequence grabbing.

The code is written to be both cross platform (PC, Mac, Linux, iPhone) and cross compiler. The API is designed to be minimal and easy to grasp. There are very few classes, and inside of those classes, there are very few functions. The code has been implemented so that within the classes there are minimal cross-referencing, making it quite easy to rip out and reuse, if you need, or to extend.

Simply put, openFrameworks is a tool that makes it much easier to make things via code. 

Ok, this one is a little old, but it's FREE.
Caligari's trueSpace7.6 is a complete modeling, texturing, animating, rendering, and 3D collaboration tool, used by everyone from 3D enthusiasts to illustrators, researchers to teachers, architects to design engineers, and more. The immersive real-time interface allows users to intuitively and directly manipulate objects in a fully-rendered 3D space, enhancing and accelerating the design process.

Promote your App!
You can get your software into one of the bigger app stores right now! Check out the store called AppUp:
http://www.intel.com/appup/

From this humble portal, your application will be advertised to millions of netbook users around the world from which you will receive a very generous royalty for every copy sold.

Instructions for making your application "AppUp" ready just click here: The Game Creators Newsletter #86
and then read the article "Lee's Tip of the Month - Stepping Up With AppUp"