When I bought Poser 7 some time ago, I could render some scenes which gave me memory problems earlier. P7 uses a totally different system for texture handling, which uses much less memory. In addition to that, you can run the renderer as external thread, and use more memory for it this way. So I'm pretty sure that P7 will help you to render such scenes.

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.