hi, yes you will run out of money without job, me and my partner, we arrived to Perth 1Jan2015 with $20000 in pocket. I am cabinet maker and took me 3 weeks to find a job in my profession ($50000 p/annum+overtime) , my partner is environmental engineer and she is still sitting at home after 2nd interview. I can only pay the bills, food and live from 1st-1st, we are renting 2bed house $380rent, $250food, $70petrol +$50 bills, all per week... we have 4yr old kid. with UK experience can be hard to find anything unless you know right people or you are a trade. we have beaches and stunning weather however she must find something and we must both work, otherwise all idea of better life is missing the point. Mining boom is finished long time ago and people looking for a jobs and employers will employ Aussie first. If I knew I would go to Melbourne, seems to be much more job offers. PS don't look only on seek for jobs, I also heard that some of the job opportunities are fake. because of Aussie law companies advertise but position is already filled. also we hold 189 visa.
Good Luck.