True, Aussies now have the E3 visa which is a work sponsored visa just for Aussies. But I came here years before that happened. I had to convince someone to give me one of the very rare H1B visas just to come over to be with my then girlfriend. We eventually got married and I applied for the greencard.

I'm not sure about auto qualification if you want to start a business. I think you need something like $1M in the bank to prove that you have the resources to start...