You get a better exchange rate in Turkey OR by using a Nationwide debit card - no charges & the best rate possible. The approximate rate in Turkey is on the bottom of the page.
It's anyones guess as to where the exchange rate will go - do a search on historical interest rates. If any of us knew where it was going to go we could make a killing!:D:-\
The election is on 22nd July - again this could affect the exchange rate - which way is anyones guess.