http://www.workin4u.com/allmetal/ try there but hold onto u r pants the prices arnt bad but the better the machine hahaha the bigger the price and here in aussie land not vary many .
Look for importers of used machinery go ----google----
used machinery importers australia --- and email or go to their sites or ring up and ask questions
I hope that helps but as I have been researching this hobby like others = $$$
If you dont want a home made cnc but an industrial one and its either 240 volts single phase or if you have 3 phase you are in more luck for used machinery although age type size and fittings to thatparticular model will either be fair priced accessories or the other way is too pricy.
Have fun keep looking and dont be shy at ringing new machinery sellers some are helpful others well iI wont say what some sales peopel say