Disabling touchpad tapping in 9.10

[Nigel Ridley]

OK. No Xorg.conf in 9.10 -- so how do I disable touchpad tapping?
In Jaunty it was simply a case of adding:
Option		"MaxTapTime" 		"2"
to the Synaptic Touchpad section of xorg.conf

So what do I edit? Is it something to do with /etc/hal/fdi/policy/10_keymap.fdi ?

Blessings,

Nigel