And if that link doesn't work, go here --> [link] <--
(I recommend just using the web version since I don't think I did the PDF quite right... lol)
This tutorial covers low-poly for real-time Modeling, Smoothing Groups, UV Unwrapping, Texture Creation of Face, Clothing, and Hands, and creation of Hair.
I take a character from start to finish and explain pretty much every single step.
I like your technique for the hair, the idea of just bringing in patches of hair and arranging them as you go is so simple and clever I never even thought of it.