Just came across this backpack which will cater to my needs when I go adventuring with my digital sniper:
http://www.clikelite.com/
They feature Elite series, which has compartments made for camera accessories, as well as a separate compartment for basic necessities like clothes, camping equipment etc.
This will be a great investment so that I can travel far with proper equipping - Uprise 48 wasn't really made for backpacking as it doesn't have room to keep my basic necessities. In Singapore, so far, what I can source is from Manda...