Cashed up

So we figured it'd be a good idea to take some of the currency for our trip over with us. Good idea -as it means we wouldn't have to muck around with withdrawing cash... especially because the first places we visit generally don't use Euro (plus Shona gets a better rate for currency through her work). So this photo is us with our colourful collection of US dollars, British Pounds, Danish Kronars, Swedish Kronars, Swis Francs and some Euros... what's the amount that you have to declare when you pass through customs?