You're correct about Australia using PAL.

The official region assigned to Malaysia is NTSC/UC . Most of the games sold here is NTSC/UC, with a few NTSC/J imports. PAL games is very rare, if any at all. If you do get a PAL console, your only choice/source would be using internet. There are a few other PAL users here tho, most buy their Wii while studying or working in UK or Aus before coming back. You can ask them for advice.