Poser is zero % graphic enhanced so any upgrade past a pretty standard card will offer very little help. If you use any software that uses opengl and money is no issue then check out 3dlabs latest. If you want to spend around 300-350 then check out rad 9700 or geforce ti4400/4600 both offer very little dif between each other in the majority of open gl, both are very good fo games dvd playback.