Dear Sam,
The jobs market in Oz is very tightnow and I personally know many people who have recently lost their jobs. If you want to come to Oz, be prepare for tough times. Since you have kids, extra caution and big financial buffer is recommended. Also, Oz recruiters are very particualr about work culture and without a local degree and familiarity with local culture and slangs, find work might be difficult. Try to come as student and get accustomed with local environment and with Ozzy degree, you are same as anyone else.