Cheapest DSLR in which of the following countries India/ USA /singapore/thailand?

I want to buy a DSLR (nikon d3000, d5000 or canon 450d, 500d 550d---one of the listed) which is about 30000 to 40000 rs range. I'm in india and soon to visit US, singapore and thailand
which is the best place to buy the dslr in terms of the cost? Can someone provide the rates of the camera in these regions.
Is there any warranty issues/product quality etc that needs to be kept in mind when buying in the places.
As a final verdict… Where to buy it!

When you check around, on line or actually there, you'll find that given the exchange rate it'll always be virtually the same. The only difference is the actual seller. These are the people that will make the difference is cost and then it may only be a few lower from one store to another.

The world's leaders, Canon and Nikon always charge the same, world wide, for their equipment regardless of country. If it's $500 in the US it'll be the equivalent in any currency, any where.

The cheapest would be in Singapore if you know where and more importantly when to buy. If you get Nikon just be aware that the warranty you get in Singapore is useless elsewhere in the world.