Typing this whilst PMC is cooking a scene.
I'll post Pathtracing and PMC on here using 1000 & 32000 samples on a real firefly killer scene as soon as its ready (1 GTX 460) so this may take a while
The scene - a real firefly killer

Empty enclosed room with no windows , 1 glossy wood floor, plenty of bump maps and just 1 single small bulb hanging from the ceiling as a blackbody emitter.
Let the testing begin
