The grey pound is a powerful thing,
If he really does go out and buy everything he needs I feel your pain!
Assos clothing is incredibly highly regarded and priced to match!
http://www.assos.com/
also try these guys if he is into the history of road cycling etc.
http://www.rapha.cc/?gclid=CIi_ldyRupoCFQMEZgodlnYHcA
Or books about all that jazz too this one has a great title:
'A dog in a hat -
An American Bike Racer`s Story of Mud, Drugs, Blood, Betrayal, and Beauty in Belgium'
good luck; bloody parents!