For travelling, best bet is PS2 Slim....you wouldn't want to lug around an XBOX...OR alternatively, (a very good option)...is to buy an XBOX, load a bigger HDD inside(say 80GB or more), dump in LOTSA games into the HDD and you can play it over there for 2 months. Beats carrying disc around (also no worries with customs...if u know what i mean, mate ).
I think Australia is PAL.

A modified XBOX can display both PAL and NTSC signal me thinks, i can test it out and let you know later.

Anyway, if you have a multi-system tv in australia, it should work also since most tv from last 5 years should be multi-system.

The only concern is if you intend to buy ori games over there which might not work on ur machine. But if you do it the XBOX way...no worries...

I've never encountered heat problem with my PS2 Slim. Of course, if you're the type that plays 24/7, then sure die-ler...if u only play about 3 hours at one session. it shouldn't be a problem.

Where got 8GB memory card!! Only 8MB!!! That's like 1000x difference...LOL.

The normal price is around RM699 +- a little.

If you get something that's way too cheap than most shops, i suggest you don't be pound wise but penny foolish. Very likely it's a recond set.

You'll waste RM500+ instead of saving the RM100+.