BLENDER - Very well featured software, but quite a steep learning curve for most people
WINGS3d - WINGS 3D - Great for beginners, unfortunately there is no animation support currently
ANIM8OR - Brilliant beginners software
FRAGMOTION - Good piece of modelling and animation software, can export to many formats but not as well featured as priced version
MARBLECLAY- A very good modeller which is similiar to Metasequoia
SHAPESHOP- An extremely good, easy to use program that creates implicit surfaces by simple 2D sketching techniques
ART OF ILLUSION - Open source program used for modelling, animation and raytracing that has many features contained within high-level commercial software. Well worth checking out
DOGA- Shareware modeller that exports easily to metasequoia and has some really good rendering abilities
GMAX - Based on 3d Studio Max, brilliant program, even though limited
ZMODELER- 3d modeller directed towards people creating content for video games either in development or currently available
SOFTIMAGE|XSI MOD TOOL - Easy to use, great for getting started into game modelling. Limited to 64000 triangles, maximum render output is 512x512
ALBATROSS3D- Great tool for making game content, with a direct x exporter and capable of animation
TRUESPACE- Easy interface, impressive rendering and very useful in all areas of modelling
CHARACTERFX - Not modeling software, but a useful tool for rigging characters for your games
PACEMAKER - Another free tool for rigging your game ready characters
VUE7 PIONEER - Amazing program to aid you in your terrain/landscape building needs
Priced Addons
Object Packs