Attached Link: http://www.artofillusion.org

Here's another one to check out, Art of Illusion. It's written in Java so it should run on any system. Has some nice features and does obj import/export. I've just started playing with it so I don't know well it will work doing Poser stuff.

"Democracy is a pathetic belief in the collective wisdom of individual ignorance." - H. L. Mencken