First I want to introduce powerful 3d modeling software I found, which you can use for free. Yeah, you read right. You can use it for FREE! It’s Blender.
Blender is a free and open-source 3D computer graphics software product used for creating animated films, visual effects, interactive 3D applications or video games. Blender’s features include 3D modeling, UV unwrapping, texturing, rigging and skinning, fluid and smoke simulation, particle simulation, animating, rendering, video editing and compositing. It also features a built-in game engine. Well atleast that’s what Wikipedia says about it. I didn’t had much time to study it, but from first sight it looks very complicated for someone new and needs deeper insight. I think it’s going to be my software, which I will use for future.