Where to buy games online?

[ferrisld]

Hi all,
I'm trying to buy a stand-alone copy of "Guitar Hero 3" for the PS3 without the guitar controller as part of a package with the game. This is proving well-nigh impossible so I thought I would just do it on Amazon.com - but then I realized they would send me a north american version of the game which won't play on my Singaporean PS3.

Any suggestions on where one can buy games online that will work with A Singaporean PS3??