There are liquidators right across the US, but you can type some product names into Google, along with the word liquidation, and that will usually turn some up.
Jimmy, the community manager here on the forum also runs is own liquidation business....www.ppwdg.com
he has his own feedback thread on here for members to comment, but unfortunately does not ship to Australia, as not all do. Even if you do find one that ships internationally you are still faced with the bad exchange rate that will hammer you on small purchases.
You would have to be looking at a container load I would think to make it anywhere near to cost effective for yourself to import at this point in time.
Of course you would also have to be careful about what products you bought, for example 110volts that they use in the States would not work here in Oz.
It is a frustrating source of products for many international members at the moment, a lot of people would like access to the market, but it's just not financially viable the way the money situation currently is.