Thanks for the great feedback and comments everyone, I didn't expect to get so much great feedback! I will definitely take up a number of the suggestions and hopefully meet some of you at the various meet-ups and events (in Melbourne at least). And I've touched base with Pollenizer and hope to be at a Bootcamp soon.
To answer some questions such as to why can't I go to the USA. I've got a 7 month old son these days, so the international thing is a bit impractical at the moment. Plus I think there are some great opportunities to be exploited domestically, which obviously isn't taking on the world but I see a lot of opportunity to build good local businesses in Australia.
Jamessg, I agree it's not so much the money, but the access to people that have experience and have done it all before to provide that important guidance and save $ from being wasted on the learning curve.
Anyway thanks again to everyone, really appreciate your help, and hope to meet up with some of you in person soon.