Electronics

Camera Equipment/Photography

• Kogan.com.au – now selling Canon, Nikon, SLR cameras and lenses from Hong Kong.
• Adorama.com – Huge range of photography and video related products.
• Bhphotovideo.com – Huge range of photography and video related products; considering the awkward size of some of the gear they ship, plus the phenomenal range I’d highly recommend them.
• D-d-electronics.com.sg – Huge range of photography and video related products.
• Cameta.com – Huge range of photography and video related products.
• D-d-photographics.com – a grey importer based in Sydney, prices are about the same as the USA
• Camerasdirect.com.au – a grey importer based in Labrador QLD, prices are about the same as the USA
• Dwidigitalcameras.com.au – Hong Kong based, large range of equipment, fast shipping
• Eglobaldigitalcameras.com.au – Hong Kong based, well priced specials, especially Canon lenses

Computer Games

• Play-asia.com – cheap & reliable
• Dvd.co.uk – dvd, blu-ray, games. Cheap shipping to Australia too. UK PS3 are the same region as AUS.
• Thehut.com – UK site, a bit slow in shipping, but good sales and prices.
• 365games.co.uk – pricing in GBP, EUR, USD
• Ozgameshop.com – UK based site run by Aussie, with free shipping.

Computers & Hardware

• Portableone.com – purchased x2 laptops in past two years, expensive P&H but very reliable responsive customer service & quick
• Xoticpc.com – P&H about USD$249. Are very reliable resellers in the US.
• Netgate.com – High End Networking/Wireless/Router Equipment and Antennas. 
• shoppingexpress.com.au - bought a couple of things, 1 was DOA but they went out of their way to correct & paid for all postage involved. great prices, especially their sales. 
• NewEgg.com - good shipping rates on some items

DVDs & Blu-ray Discs

• Amazon.co.uk – great for blu-rays (same region)
• Amazon.com – great for DVDs and blu-rays (must check region encoding) and books
• Dvd.co.uk – dvd, blu-ray, games. Cheap shipping to Australia too. EU\UK Blu-rays are same code as Australia.
• Thehut.com – A UK site, a bit slow in shipping, but good sales and prices
• Fishpond.com.au – slow but free postage 
• BN.com - Barnes & Noble; books, dvds, music, etc.

Electronic Components

• Sparkfun.com – Wide range of electronic component, like resistors, sensors. They have the Eagles Library for all their components. ship from US. Arduino Focus
• Dfrobot.com – Similar to sparkfun, but also has pre made sensors on PCB bord, no soldering required. They hace robot kits. ship from HK
• Futurlec.com – Much cheaper than the 2 above, but usually takes a bit longer to ship. prepare to wait a while with them.
• Pololu.com – I use them more for jumber wires and their crimp connectors, but they also have a wide range of components.
• Dealexcel.com – They have some Lo to Hi end Electronic Test equipment for a decent price. like Fluke multimeters, ir thermometers, oscilloscope. ship from HK. express shipping for most.

 Gadgets

• Dealextreme.com – Cheap gadgets from HK in USD. PayPal. Shipping included in price (usually takes 1-2 weeks)
• Mymemory.co.uk – Assorted gadgets (particularly memory cards and USB flash memory) from UK.
• Focalprice.com – Wide range of cheap stuff like DealExtreme above, but not as popular.
• Thinkgeek.com – shipping is sometimes expensive, watch for free shipping specials 

Mobile Phones

• Clove.co.uk – Mobile phones, PDA's and tablet computers
• Expansys.com – Mobile phones and electronics. Get the latest phones first in the world! Just like Clove.
• Handtec.co.uk – Mobile phones etc like above
• Kogan.com.hk – Kogan's HK subsidiary now selling iPhones, Android phones, iPads to Aussies.