#1
um to be more detailed. does anyone know any tapping guitar songs? like drifting-andy mckee. ocean-john butler trio? if u do then hit me up (:
#7
You could try 'Heroes of Sand', 'Tapping into My Dark Tranquility' or 'Estudio de Ambas Manos', each by Kiko Loureiro from Angra. They're more based on left and right hand trade-offs than percussive playing though.

Alternatively, I think there are some Erik Mongrain tabs up if you look around the net which feature some really cool percussive and open tuning ideas.
I think Steffen Schakinger might do some percussive laying too, but I'm not too sure.