In reply to GridNorth:
They have US/Euro/£ ATMs but as it has been mentioned already you will get absolutely skinned on the exchange rate.
Put it this way, I was at Gatwick last week and needed 200 euros, the spot rate would have cost me £155, what they offered was 200 euro at a cost of £185. Basically anybody who uses airport based FX services need their head examined.
Post edited at 13:39