I found an interesting article at e-frontier.com about what system and components work best with Poser 5/6.  I found it enlightening.   I was all ready to order a 4 GB ram, dual processor system, with a top-of-the-line video card, but according to this article, Poser can't use more than 2 GB of ram, and a dual processor or Athlon Processor doesn't speed things up.  E-frontier says hard drive speed is one of the most important factors and space on the drive--now that's one thing I'm short on with all of my Poser products. LOL! :-)

Here's the link for those of you who want to read it.
http://www.e-frontier.com/article/articleview/1470/1/598/

Of course 4 GB of ram might be great for postwork in Photoshop...

Bobette Bryan