Poser imports seems to eat up my ram but only managed 5.5 gig usage so far, I think the key to using more is lots of displacement and objects as you say Mudbox will do it. At current times though I can't justify a render that long! Are you saving your scenes up for later versions then? That is quite a cool idea. I have one animation that is about 500 frames long and ridiculously complex however I don't think I will be rendering it until Vue 10 either