You said it best Ikendall...... The key functionality of the 64 bit render engine is to allow access to more than 4 GB RAM (3 GB RAM to be technically correct).... I wonder what it would have taken SM to inculde such a feature in P8? (even it it was an "Add on" component)...

It would be interesting to see if Poser Pro 2010 is a spin-off of P8 w/ 64 bit render option..... only time will tell..