If you are happy to leave your purchase last minute it may be worth a look at this:
http://www.dixonstaxfree.co.uk/
If you ring ahead I believe they can get items in for you and for reservations to be made so that they have it in store when you pass through the airport. Their website is rather limited so I'd definitely give them a call. You'll have plenty of time on the flight over to read the instruction manual
I'd go with someone else's suggestion of Amazon for memory cards. They are always way over priced in any store. A Sandisk Ultra II card is even cheaper, but data isn't written to it as quickly.
http://www.dixonstaxfree.co.uk/
If you ring ahead I believe they can get items in for you and for reservations to be made so that they have it in store when you pass through the airport. Their website is rather limited so I'd definitely give them a call. You'll have plenty of time on the flight over to read the instruction manual
I'd go with someone else's suggestion of Amazon for memory cards. They are always way over priced in any store. A Sandisk Ultra II card is even cheaper, but data isn't written to it as quickly.