Ok, but would want to have both on the same machine or can you afford to have both on the same machine space wise? Right now poser 4 is taking up the largest amount on my harddrive. It is almost a third of it! And I don't have everything that I want loaded into poser either yet. On my old machine almost 70% of the space on the harddrive was taken up by Poser 4. I am sure that P5 will not be any smaller and that space it will use will grow faster than a speeding bullit.....