Embedded external editor?

[Quincey Koziol <koziol ncsa uiuc edu>]

Hi!
    I'm interested in using vim as the "native" editor for composing messages
in balsa.  I see that someone is working on enabling this for evolution:
http://www.opensky.ca/gnome-vim/evolution.png
    Is there any way for this to work with balsa also?

        Thanks,
            Quincey Koziol