my short visit to HK in july 2006 has been like teaser and would like to go there again in future.
i visited mongkok market to buy some electornics items. i was so excited to see all sorts of computer related items at mongkok computer center but be aware majority of products are fake and it only your luck which may work with some items you buy from here.
on the road there is bazzar where you could be there potential prey . i found many Hongkong police on the street helping poeple from other country and this to prevent cheapting by local shopowners.
you must do bargin at these places and if someone is agre to sell products at dirt rate then it must be faked product.
otherwise city life is great and public transport system is worldclass here.