Thanks for the link, Geoff..
The suitable models are :
http://shop.voltelectronics.com.au/6...er-supply.html
(For you: may be OK, current rating is somewhat low)
http://shop.voltelectronics.com.au/p...w-2-1lead.html
(I am using similar model)
http://shop.voltelectronics.com.au/p...-15v-3-8a.html
(This one looks OK for you)
SMPS's are good because they are regulated, usually with tight tolerances, and the noise from them is not a problem for mount (because processor has its own regulator, and the only thing that is powered directly from PS are motors.