I manage a video production house in Singapore (Bamboo Pictures)specialising in corporate videos. Professional video production equipment is comparatively cheaper than in UK and US. So it's a video geek heaven of sorts.
My favorite shopping haunt is Sim Lim Tower. It's mainly an electronic parts supermarket hawking things ranging from batteries to circuit boards.
G&G Electronics Enterprise (Tel:6294466 on the 2nd floor specialises in video production gear - even the hard-to-find stuff like PAL-NTSC System converters and LANC remotes. They also stock master-quality miniDV and DVCAM tapes. You can also find the cheapest Taiwan-made Luxmen 300W video lights at just SGD120 a pop.
A floor above at unit #03-05 is Sinter Electrical Company Pte Ltd. They are a gaffer's candy-store with their assortment of lightbulbs (or lamps) for practically any kind of lighting.
For sound equipment, I rely on Hung Brothers Electrical Trading in Sim Lim Square. Challenge these guys with your most perplexing miking problems and I'm sure they can cobble up a solution from their infinite range of microphones, pre-amps, mixers and recorders.
Finally for those who are setting up your own virtual studios and post-production units, go to AV8 Media at 101 Building. They are the sole distributors for Canopus and UK's Reflecmedia.
10 Anson Road