The main software I use:

1. Poser

The best sites supporting Poser are:

• RDNA which has The Official Poser 9 / Poser Pro 2012 forum.
• Renderosity which has a Poser Forum, a Poser Technical Forum and a Poser Python Scripting Forum

2. Vue Infinite

Support store and site is Cornucopia3D.

3. Silo

This is a very simple to use but powerful 3D modelling program. Fugazi1968‘s tutorials are essential! They take a user from rank beginner with Silo to expert. I cannot recommend his video tutorials enough!

4. Modo

A very professional company which puts its customers first. Excellent all round.