Dan--

Very nice.  I will say, though, that the very first thing I did was

  (define-key org-buffers-mode-map "q" 'bury-buffer)

I would request that something like this be included in the default
keybindings.  A smarter version might try to restore the window config
From before org-buffers-list was called.  See ibuffer-quit for an
example.

Will report back after more testing!

Thanks!
/au

-- 
Austin Frank
http://aufrank.net
GPG Public Key (D7398C2F): http://aufrank.net/personal.asc