i just got an idea. although, this is quite expensive but for me it's worth the effort.
i'll do the following steps:
1) fit/trim my whole collection to my existing 2TB HDD
2) buy a new HDD of the same capacity
3) transfer all the goods to the new HDD
4) delete all the goods from the new HDD... who heard it right. ;-)
5) bring the new blank HDD with me to Oz (entrust my old HDD to any relative of mine)
6) recover the deleted files once i get to Oz using a recovery software
so far this is the best idea that i can come up with for now. i-check man sa airport makikita nila blank ung HDD so i wouldn't get any problem.