Honestly? I wouldn't bother. The resorts in Australia have terrible snow quality and are very overpriced. For less money you can go to NZ and enjoy primo snow and a great nightlife in Queenstown. This is coming from an Australian also, so no bias.
I would have to agree. Queenstown ftw.
Sydney ski resorts i.e Perisher and Thredbo is over priced. But if you're keen on coming to Aus, best to go to Melbourne (Victoria) ski resorts. Cheaper than Sydney ones and better resorts.