Booking an RTW from a foreign travel agent

Folks
I am looking to do an RTW starting and ending in HKG in March. Has anybody any pointers on how to achieve this considering I live in London at present?
Cheers, Howard
I am looking to do an RTW starting and ending in HKG in March. Has anybody any pointers on how to achieve this considering I live in London at present?
Cheers, Howard