My B?F is currently overseas in America (NYC/Vegas) for holidays with his best friend/fag hag whilst I am here in Sydney, Australia working & studying it up (not to mention cleaning the house, etc!

*LOL*) - to make it clear, I couldn't afford to go (& neither my B/F or I would let him pay for it, & rightly so given how much money they were taking with them, etc) & couldn't get time off work, as I have recently been promoted - but it seems the other half has been bitten by the Big Apple & has fallen in love with the place so much he now wants to move there.
Whilst he could possibly get a transfers from his work (the company he works for is based in the U.S.) , I am worried about moving over there & was hoping for advice (I myself work in Hospitality & am studying to be a Teacher/Training & Assessor & a Life/Business Coach).
I will admit that I have been curious about moving to the U.S. for a number years, but nothing has ever come of it. My main concern is that I want us to be more secure in our relationship & work on a few issues we both have & sort out our more negative differences that drive us apart @ times (we have been dating a year & a half & it's still on-going, hence my concerns) before we make a massive step/commitment to move to another country together where we wont really know anyone (I have a few friends in America, but I speak to them mostly on FB.

*LOL*).
I was also looking @ gaiing more ifnormation on the US, it's bhistory & cutlure & the ins & outs of moving to the US as an immigrant or obtaining a working visa or wining one in the Diversity Lottery Program - any & all suggestions help would be useful & muchly appreicated.

Advice/thoughts people?