The Poor Person’s Production Suite is an ensemble of three, high-level Animation, 3D, Compositing and Video Editing tools that are available as free open source GPL applications. However, this is not a direct attempt to duplicate the production tools found in Apple’s Final Cut Studio. It’s an attempt to create a fully functional, professional software suite that is capable of generating high end VFX and 3D animation like those found in Shake and Motion and Maya. Don’t be fooled, just because the software is free doesn’t mean that it isn’t of professional grade. Link.
DIY Production Suite