Wanchai Computer Centre, Hong Kong
I've been to Hong Kong several times, but had never made the short trip to the Wanchai Computer Centre. It's essentially a multi-floor shopping center quite literally crammed full of all manner of electronic, digital media and gagetry, as well as related products.
My new favorite deep discount camera shop there is a small little place called Concept Digital where I got good deals on some items I needed for my trusty Nikon D70. The management there was friendly and ready to make deals.
If you're ever in Hong Kong, and you're a complete computer/web/photo/gaming geek, you owe it to yourself to budget at least a couple hours and some cash for the vendors at Wanchai.