I am taking a trip to England and Australia in Novemeber. I would like to know which of the following method will give me the most favorable exchange rate in British ponds and Australia dollars? Thanks!

1. Withdraw money from local cash machines (require service fee).
2. Put all the charges on credit cards.
3. Exchange money in airports or local currency exchange stores, such as Thomas Cook.
4. Exchange money with the bank that you have an account with (my bank requires $10 service fee for less than $1000 transaction).
5. Traveler checks.

David