Change Window resize tolerance globally?

[maciaccio]

How do I increase the tolerance for window resizing with the mouse? It is difficult with a mouse and even more so with a laptop track-pad.

I have looked in all of the settings in the Settings Manager> Appearance, Desktop, Window Mgr, Window Mgr Tweaks, Accessibility, Mouse/Touch-pad, even the Settings Editor.

Is this similar to the post about resizing the scrollbar globally? If so, what is the syntax to add to gtkrc-2.0?

Thanks