I noticed you have a few tutorials on your homepage. Could you possibly make one for painting hair using this medium? Painting hair is the thing I seem to really struggle with and all the digital tutorials I have seen seem to be for Photoshop, using brushes I don't have. I don't want ArtRage to turn into a Photoshop clone, because I think ArtRage is a pleasure to use and Photoshop is a pain if you don't know your way around every feature, but a tutorial for that particular aspect would be very helpful.
This is not really Artrage specific - but it might help (it helped me a lot!).
( edited link so that it's clickable - DaveRage )
I'm not sure if this is what you're looking for, but here's on I found: