The brush I mentioned: Brush Easy Blend in this set by =Feohria
(Lots of cool brushes there, well worth a download.)
I'm not a big subscriber to tutorials. I don't follow any one from beginning to end. However, I do enjoy flipping through them and once in a while I'll pick up something useful - hopefully this provides something useful to someone else too. =] I'm still very new to digital painting and was largely just chronicling my process as a beginner.