Rod, I think you will find the minimum of 500hrs is mainly directed at RAAF guys, there is nothing wrong with being keen, enthusiastic and optimistic but at the same time if you are not realistic you will be in for a big letdown.
You would be VERY lucky to get into QF in the next few years with 500hrs, contrary to some posters here indicating they know people who have. Things change quicly in this industry, but I think the days of QF needing to drop their actual minimums to 500hrs are a fair way off.
All the best
HKF