yeah take cash stg and change in resort. thats what we are doing as well.
if you read some of the old mesg the cover it more indepth.
we are arriving the day before. where are you staying?
if you read the old posting relating to the questions i asked on "exchange"
you should find all you need.
It seems sterling might be best and try to change money at a bank or hotel NOT at a money exchange.
Happy hols