Working on some storyboards recently, I made some effort to set up a workflow that would make the process quick and efficient (again I am reminded of an xkcd comic, but anyway).
The workflow allows for clean sketching (or artwork import) in photoshop, batch export and import into an InDesign template for six-to-a-page viewing.
Besides the templates, there are a couple of actions and scripts that make the process fast, and I hope they are robust enough to work on different platforms, but no guarantees. I also made some brushes for drawing arrows, but I think they need some work, so I haven’t included them.