I use Quickcursor -- you just setup a global hotkey and it will open the contents of any text widget in the editor of your choice.

http://www.hogbaysoftware.com/products/quickcursor

Well, there's this

https://addons.mozilla.org/en-US/firefox/addon/its-all-text/

if you're using Firefox.

FYI, you can set bash to vi mode with `set keymap vi && set -o vi`.

I agree. Emacs type key bindings are prevalent in osx, sad to see vim missing. Although I was so happy to learn c-d was delete in cocoa boxes, especially since that is easier to type than fn-delete.

I mostly use emacs these days, but still use vim too. To keep my brain from scrambling, I changed emacs movement keys to match vim (ie c-h, c-j, c-k, c-m).