The currency in Turkey is Turkish Lira, Euros and Sterling are also widely accepted in most places but it is recommended to change your money. Most hotel receptions will do this for you, but for a better rate of exchange you can change it in any bank or money change offices, there are many of these in the town..
There are many banks and ATM machines in the town as well, and they accept most ATM cards once your card has the Cirrus or Link sign on the back and if you see the sticker or sign displayed on the ATM machine your card will be accepted there, on most of the machines you can select your language as well.