Snappy interaction is almost as important as raw rendering speed. Most of my actual work time has been spent waiting on my graphics card.

I just moved to an ATI x1900 and Poser is a whole different program - much faster interaction. Posing is a breeze rather than, dial/wait dial/wait rotate/wait.

I was on a Nvidia Q4 750 - which was ok about 5 years ago. But the jump to the x1900 has significantly improved my production speed.

Poser on 2 or 3 moniters is also a real boost. Have you library open on 3/4th of the 2nd moniter along side your parameter controls greatly speeds up finding-loading-saving items, poses etc.

Make sure and get a card that has good DirectX performance - Max is much faster when using DX over OpenGL.