I am using subsurface scattering on nearly everything in the scene, so it is slow to render. The hair is all geo, created by generating a low res Fibremesh in ZBrush, and then imported into Maya. There I converted it to curves and created pfxHair systems, that I then converted back into geometry.
The scene has 15.7 million polygons, and uses nearly all my video memory with the textures included. It took 6.5 hours to render with 3 680GTX's.
