Phone up your local Xilinx rep and say that you are working on a hardware Research and development project for Microsoft (or Apple or somewhere) and are thinking of using the Xilinx Spartan III or the Altera (whatever) and say that you need some samples for evaluation ;-)
When they ask for your address just put a few extra lines in:
FAO Joe Bloggs
Apple Research Design Centre
Flat 4, 999 Letsbe Avenue
Moss Side
Manchester M11 5QD
England