Salutes with tear in eye. Anyway, to answer your question, there are many good websites to use to buy cars here, but personally, I use AutoTempest to purchase cars. It searches all over the country (continental USA only) for cars. They are usually pretty cheap too. You're lucky, Australia seems to have pretty lax import laws from what I can find. HOWEVER, US export laws are a bit fuzzy. You would need to have the title signed over to you, and then you would have to present said title to Customs. I don't think you have to be a US citizen to export a car, but I am not certain. Also, to find cars closest to you, use the postal (ZIP) code 90001 (Los Angeles, California). Granted, this is only if you want to get a car in the US, but I hope it helps. It has been a pleasure for this community to have you here for three years.