I agree with pdxjims. Poser 5 has enough in it to make it worth the upgrade price, and I believe CL will be rolling out the Lightwave plugins for free to owners of Poser 5 (check their website). I upgraded recently and Poser 5 has performed flawlessly. Still, I have Poser 4 and PP on my system for exporting animations to Vue, and you'd want to keep that for Lightwave exports.