I don't have any particular knowledge about how too place existence hair in a custom playable mod. But I'm about too learn how too do such things.
In the meantime I'm asking if anyone could recommend me some good playable hair packs of relatively new date, for the male human races. It's best if the mod don't modify any standard NPC's head or hair, but please also name some of those as I'll just clean the mods NPC entries and make a custom version. Screenshots will be highly appreciated if you have the time :ninja:

EDIT: I'll not be able too check this topic or make any replays within the next 24 hours.

http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=6667 and http://planetelderscrolls.gamespy.com/View.php?view=Mods.Detail&id=5357 are the two I usually use. Neither touch NPCs. (not sure if they are Resources or not, though)
The one by Westly has many male hairs, although some are not as masculine as others.
Ren's has a few male hairs too, http://planetelderscrolls.gamespy.com/fms/Image.php?id=42350


You can place existing hair into your mod the same way you would any object. Change the ID of the Hair. (found under the Body Part tab)
Be sure to keep "Skin" and "Playable" clicked on.
Everything else you see there should be self-explanatory.

Interesting, especially Ren's Hair looks really realistic. Nice suggestions, I'm sure it will be useful. Thanks for your little mini-guide. Maybe I'll send you a PM. if I get too confused. I assume it's okay. But first I'll try without further help as it didn't sound that complicated

Sorry for my little late reply.