You're still making assumptions btw...
Not really, no.
For the sake of argument I could just point to a nationwide debit card as an example that would be similar but slightly cheaper than what you're proposing as you'll not be charged interest and will be getting the visa wholesale rate.
No it wont, because as of 1st November 2010 Nationwide withdrew the low-fee foreign spending on debit cards. This used to be the best option (and indeed is the option I took when I did Aus), but it is not any more.
The cost of withdrawing cash and paying it off at the statement date on a Halifax clarity is no more than Visa wholesale + 1ish%.
The cost of withdrawing cash from a Nationwide debit card is Visa Wholesale + 2% + £1 withdraw charge.
Please can you explain how the Nationwide debit card is cheaper?
With regards to your other point the visa wholesale rate is using a rate that they've probably obtained on Friday you're trying to compare this to a spot rate (for delivery in 2 days time) - your comparison makes no sense.
My comparison makes perfect sense - it is the rate given for a transaction made TODAY. Buy something in Australia on your Visa card *today* and that is the rate you will be charged.
Joe Public cannot acheive a better rate with less hassle than the Visa Wholesale rate. You can go to a lot of trouble to pre order cash for delivery in the future at a set rate, but thats hardly the same thing at all, and is hedging anyway.
@OP I'd say that if you're out there for a while it might well be better to do as another poster has suggested - open an Australian bank account and do a transfer via an FX broker. You then don't have to worry about exchange rate fluctuations.
Exchange rate fluctuations go up and down and are hardly a 'worry'.
I am amazed at your continued criticism of my suggested course of action.
Here is me suggesting a method of carrying money which involves simply using a cashpoint as normal and costs only 1% on top of the visa wholesale rate and you've dedicated several posts to rubbishing it whilst demonstrating you don't really know the facts.
I bet you wont be getting the same rate as Visa Wholesale by using an FXBroker and sending £3k - they'll want some profit!