Nina, you may have already noticed, but I wanted to let you know that there's lots of info on these boards and on shore excursion boards regarding these ports, and they are VERY easy to do on your own, which I highly recommend. If you book and need specific info, I'll be glad to tell you how we saw a lot in each port.
P.S. I had e-mailed DrWong back separately, so if anyone wants the info I sent him regarding conversion, etc., just let me know. I agree with the ATM info above and have more info, including do NOT exchange $$ on the ship unless you want to lose more $$.