@Glen: Needing to upgrade because your scenes are getting more complex/sophisticated? Welcome to my world! (heh heh).

@Mobster: I have exceeded 64GB rendering (not a problem with a 96GB workstation); if you're using a big enviro with trees, several dolls, and rendering with effects engaged and at large pixel dimensions, yep, the sky's the limit.

Glen, if your renders are approaching the RAM limit and beginning to page file the hard drive, then it would be worthwhile to increase the amount of RAM. Look up the specs of your motherboard to see what the maximum capacity is. You can also lower the render engine's priority, or render in background.

Another thought is to buy a used server blade (or tower), as a render slave, sending your renders off to the slave via Queue Manager. This will only work for Poser Pro, and currently only for Firefly.

Poser 12, in feet.  

OSes:  Win7Prox64, Win7Ultx64

Silo Pro 2.5.6 64bit, Vue Infinite 2014.7, Genetica 4.0 Studio, UV Mapper Pro, UV Layout Pro, PhotoImpact X3, GIF Animator 5