Please note that this is only for staff who work at the airport, not just BAA staff but anyone who works in the airport, shops, restaurants etc etc. You won't be able to get this is you are just travelling I'm afraid.
My wife just called and Dixons Tax Free are doing the Ipod Touch 8GB for £92.77 and the 16GB for £126.77. There are also some docking stations you can get for half price.
I understand this deal won't be applicable to the majority of the people on this site but if you do work there or know someone who does this is a great deal.
She has just got the 8GB one, some people are buying 2 or 3 as they are so cheap.