Wow you are freakin good for your first model ;o
I really want to see wires though, im intrigued to see how good the flow is on your first model. Put some smoothing groups inside of the mouth and i dont think you got the angularity of the eye right, i dunno, like i said i need wires to see it better.
As for the hair there are several ways of doing it, a simple way would be just to poly by poly or extrude it, another way is manipulating pyramids and another way is making a flat sphere for the head then selecting a polygon from it, right click then extrude out, then collapse. i find this method works the best for me, try with watever you want, experiment and see what you get =)
Anyway its looking pwn atm, gj dude