since you say nearly 100% use Windows in Malysia, I would focus on running Windows programs on your Mac.
-It's all about running the programs you need.
I would also focus on Widgets. I am a big widget believer.
It's hard to sell the Mac without using a Mac. =Using your Mac is the best way to sell the Mac. Don't work so hard trying to switch people. Allow people will make that choice themselves.