if you can afford the 1 month fee, look at Mark Bremmer's poser 10 tutorials on Infinite Skills.

I came from Poser 6 (Poser 8 but rarely used, only bought that 2 months ago, and got the Poser10 upgrade deal, sweet!)

A lot of the tuts refresh the use of poser with some of the newer features. There are a couple ways to do Cloth simulations and I believe the Bullet physics uses the collision detection features, which Mark goes over rather well in his tutorials. Not sure it THIS is the collision ref you are looking at).

I tend to use poser as a wooden doll drawing-reference setup instead of a rendering solution. So there is a few features I rarely use, but I like the Bullet physics to make bodypart react more realistic to gravity.

Carrara 7 Pro, Anime Studio Pro 8, Hexagon 2.5, Zbrush 4.6, trueSpace 7.6, and Corel Draw X3. Manga Studio 4EX, Open Canvas 5, WACOM Cintiq 12WX User