i'd say paint it in post, personally. just give him some fuzz up top with a texture and add the hair later, it'll most likely come out better. I usually do my hairs in 3ds Max, poser hairs in general dont impress too much. I think the dragon rider 2 hair would probably look good on him if you have that model, just use poser 4 - michael hair to convert it. You can get it at the daz 3d store, its free, and it converts poser hairs to fit mike and vicky.