Guitar Player magazine recently interviewed French guitarist Pierre Bensusan and put up a number of videos. I wanted to post this one on right hand technique and practicing scales.
Pierre is known for starting concerts with a total improvisation and has staggering technique, both in his left and right hands. He often keeps a melody, inner voice, and bass line going all at once.
There are obviously a few different ways to approach right hand technique on fingerpicking steel string guitar. Even if you do not intent to study classical guitar seriously I think a basic grounding in classical right hand technique is a great foundation for moving on into other styles.