Hi
Would take about £100 in lira to get you started and take the rest in £ or use your bank card to withdraw what you need you will get a better exchange rate in the resort and most place will take english money also you bank might offer a better rate if you withdraw in lira
There are a couple of bank machines where you can withdraw in £ might help you keep a better track on what you are spending
Dont use the cash exchanges shops use the small suppermarkets or bars/resturants to change your money as you will get a better rate and they dont charge commission
You could always take sterling travelers checks if you feel safer doing so and you will be able to change them in the same way as cash and most will not charge you commission
One of the best place to exchange is the suppermarket under the
ICR office in the centre of town they offer very good rates
Hope this helps and hope you enjoy your stay
Steve