Setting your gnome window manager in Breezy

Edit or create ~/.gnomerc and add "export WINDOW_MANAGER=sawfish" (or whatever) to it.

Apparently Gnome 2.12 (and hence Ubuntu Breezy) decided to stop supporting the /desktop/gnome/applications/window_manager entry in gconf. The key says "This key has been deprecated since GNOME 2.12", but what they mean is "broken", not "deprecated" (from what I can tell).

It took me a while to figure this out, so I'm posting it with the intention that google will pick up on it and help other hapless non-metacity users.