but what exactly would the difference be if I loaded up the pro pack versions of an item as opposed to the regular poser 4 version With DAZ-stuff the difference lies in the textures. As far as I remeber, the old version tries to put bump maps in the old .bum-file format which is'nt supported in P5 and P6 any more. They use jpg or tif for bumpmaps which makes them much easier to open in programs like Photoshop. The Propack version uses this new file format. By the way: DAZ never takes advantage of all the new material room features of P5 and P6 so there is plenty of room for your own improvements.