If you want to hire from Australia, there is a VISA that is roughly equivalent called the E-3. It has a cap of 10K, of which less than 3K are filled yearly. This is the VISA I have.
Not saying you will necessarily find the people you need down under (if you cannot find them in the US), but it is possible :)
The trick is that it's a non-resident-intent visa, which is to say, while it's indefinitely renewable on paper, at some point USCIS is going to point out that you've been here for an awfully long time and you risk the renewal not going through.
Not sure if the same applies to E-3.
I do know of an E-3 holder who had their residency fast tracked, but there have been so few of them issued that it's probably a bit hard to tell the lay of the land.
You should definitely have a decent amount of savings when you move over though, to offset the lack of credit.
E3 is a nice idea but dealing with some of life's basics can be grueling in the US if you're off the system. It's not difficult to imagine how people on the street here can't get out of the hole.
Credit Unions are the way to go, no doubt, but took a while to figure that out.
General rules: Be friendly, polite and sell the positives of being state-side (larger tech community, more user groups, conferences, etc)
That's why I'm here. I don't plan on returning to Melbourne until I've lived in San Francisco and New York either. It's a hell of an opportunity once you're over here.