Thanks. That did the trick. It also helped me (re)discover the textmate bundle.

On 4/24/06, Mark Eli Kalderon < m.kalderon@ucl.ac.uk> wrote:
Gear Menu -> TextMate -> Install "Edit in TextMate"
On 24 Apr 2006, at 20:50, Lewis Overton wrote:

> I keep seeing references to using TM as an external editor for
> Mail.app and other places, but I have yet to find the (plugin) way
> to make it happen. Can someone post a pointer to the necessary pieces?
>
> Lewy