I'm struggling with deciding how to manage my GTD system. How does one manage email based workflow in a paper system?

I use Outlook @ Work and for a while was managing my system in there using the outlook plugin. However, I really miss a paper based system so I am migrating back to paper.

I still need to file emails, create actions and delegate based on incoming email. However, I don't want to manage two systems. Any thoughts on a good process for managing this?