Hi Taufik
I myself is doing Part 1 of the ADAS course now in NZ. The water is really cold for people like us. Since you have got about a month to go before you start, you might wanna take the time to brush up on your knowledge development. Buy, borrow or beg from your OW instructor his/her Encyclopedia of Recreational Diving and read about Physiology of Diving and Equipments. In Part 1, there is a lot of classroom work. And I mean a lot.
Pejam celik pejam celik it is already three weeks i'm here and imagine studying a book as thick as a novel but A4 sized within that period. At least it will give a good idea of what your Instructor will be talking about when he does the classes.

In Part 2 there is less of the classroom work and more diving. Yea

Other than that, maybe get yourself the thickest dive booties and gloves available for yourself. The only problem I have so far is the cold. NZ is
[blink]cold[/blink][/b].
As for travel insurance, get Alliantz Travel Care as its got so far the best benefit:premium ratio. Get an annual cover as you will be doing a lot of travelling after you finish the course (assuming you get a job almost immediately. The best dive insurance package is so far is still DAN Insurance.
You can bring 20kg checked-in and about 7-10kg cabin baggage except Airasia. What I would suggest is bringing in things you dont mind throwing away after the course like old coveralls and safety boots. Buy new ones when you get back home.
I hope this will help you a bit as I myself had and am still going through it just like you are going to soon..
