Floppy Link, please don't confuse the thread with exchange rates, as a expat they only affect your saving . Think of it as a % of turn over, and this is only an example as I have no idea of charge out rates in Oz or the UK. $A at 1000 per hour x 5 = about 10% and the same for the UK in pound's.
As my old (very old grandfather, as he is now dead) use to tell me
A day's pay for a pair of boot's
A week's pay for a suit
And a year's pay for a new car , not that much has changed