svdl,

first, nice system....

1. which of the three drives do you have the OS swap file located?
2. have you come to believe that running separate HD for the three elements is smarter than RAID-0?

on the test runs:

3. are you saying that FFRender is a 'regular' firefly render and that "Poser process" is 'render to a separate process?  (and thus your comment that 'render in separate process' is more efficient in communication overhead than 'separate process?')

4. since a 800x800 render contains 4x the pixels of 400x400, wonder why it only takes roughly 2x the time to render to the larger window?