what area's are you looking at?
because we to are looking to buy in port kennedy area perth wa and I can honestly say when i compare what we can get there compared to here in the UK we are so much better off in OZ. only 30 mins from perth were as here we are 1.5 hrs from london and the house price is the same for alot less house... also look in rural area's as houses are much cheaper, my first house in oz was a bargain at $55,000, I know they are not that cheap any more but I got a 4 bed house in a country town for that price.