I've just finished a tutorial where I describe a workflow
for creating and baking high definition, realtime surface
shading. I hope you find it useful. :)

MetaSL based texturing

Part I: Overview
Part II: A basic example
Part III: Baking
Part IV: Displacement
Part V: An advanced example
Part VI: Tips and tricks
Part VII: Known issues
Part VIII: Node reference
If you find problems or solutions, have suggestions
or opinions, please post them here.