Just wanted to share my experience thus far as I recently made a big change myself. Travelled the world for 6 months with my husband backpacking then came here to Australia to do my masters and work as a Registered Nurse. I've been here 3 months already and it's been impossible just to get my licence to even apply for jobs. My advice would be sort this out before you leave, and prepare (potentially) for MONTHS of agony getting your application together. It was harder for me because I did my application in Sydney, not back home so had to have family mail me my documents. DO THIS BEFORE YOU LEAVE. Anyways, to give you an idea of the ridiculous things they need - high school transcripts, uni transcripts to prove you speak English, all of the clinical hours & theory hrs of each and every rotation you did in school, all your employers and hrs within the past 5 yrs, reference letters outlining what you did on the unit hrs/per week worked, etc. letters from HR manager (HAS to be a manager) with all the hrs you worked, dates ,etc.
That's just scratching the surface on what they ask for. By the way - all those documents need to be certified by a lawyer or anyone else fit to certify outside Australia. Fun times! After I sent my application and $500, they asked me for additional documentation. It's crazy discouraging and like I said, just anticipate a LENGTHY process.
That being said, this is the most beautiful country I've ever seen. I LOVE living by the beach with pretty much perfect weather every single day. I didn't come here primarily to be a nurse since I'm a full-time student but had hoped to work part-time. It is possible but I would say first get experience (1 yr at LEAST) back home, and start the application process EARLY on. Hope that is helpful.