"The best exchange rate is from pulling money directly out of an ATM, if you're going to have cash (always have a little bit -- but not too much -- on you). Make sure your bank knows exactly which countries/regions you'll be in. HOWEVER, you would do well to get a credit card that doesn't charge foreign transaction fees. I have the CHASE Southwest Airlines card, which is great because I fly Southwest all the time and earn points, and they don't charge foreign transaction fees. "
http://www.creditcards.com/
"The best exchange rate is from pulling money directly out of an ATM, if you're going to have cash (always have a little bit -- but not too much -- on you). Make sure your bank knows exactly which countries/regions you'll be in. HOWEVER, you would do well to get a credit card that doesn't charge foreign transaction fees. I have the CHASE Southwest Airlines card, which is great because I fly Southwest all the time and earn points, and they don't charge foreign transaction fees. "