I downloaded an extension that will allow me to use Emacs as an editor when using Thunderbird (which I just started using a few days ago as an additional option to Pine): http://globs.org/download.php?lng=en
Here’s a link that better explains how to set up the External Editor extension: http://bria.nwood.org/?q=node/48
You know what this means, don’t you? I need to find a similar extension for Movable Type!