I still like some hair models by Kozaburo even though he hasn't made anything new in a while. Plus3D, as already mentioned, and outoftouch has some nice ones, some that are free.

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8