These machines are fantastically convenient, dispensing foreign currency for American dollars at an excellent exchange rate. (Remember to check if you need a four-digit PIN!) Plus, they’re everywhere:
American Express
http://www10.americanexpress.com/sif/cda/page/0,1641,13195,00.asp
MasterCard/Cirrus ATM Locator
http://www.mastercard.com/cardholderservices/atm/
Visa/Plus ATM Locator
http://visaatm.infonow.net/bin/findNow?CLIENT_ID=VISA
Credit Cards > ATMs > Currency/Exchange Rates > Traveler's Checks