check out
www.immi.gov.au - the aussie immigrant information site for all the info you need for a working visa - i havent needed one but friends have found all the info on that website - also, as far as I know you can only work 3 months at a time in one place - also check out
www.jarmbie.com.au/itinerary/factspage. There is also a certificate you need to complete before working in a bar/restaurant (anywhere u are serving alcohol) called the RSA - half a day course (about $120 aus) which you have to complete before a bar or restaurant will take you on - more info at
http://www.dgr.nsw.gov.au/HTML/LIQUO...uirements.html
Hope this helps!