Which program I need to use your 3D models?

[Shadowth117]

Well there's a number of programs you can use although many of the better ones are VERY expensive. Of the free ones though I think Blender is probably the best albeit with a much different interface than most others. However it IS very good regardless and the best thing I can recommend. You can get it at http://www.blender.org

There are obviously many other programs you could use, but many aren't free or just plain aren't really worth using. Blender just seems to compete the best against commercial programs from what I've seen.