Barrin, if you're thinking of importing books from Japan you should try getting from http://www.bk1.jp/ if they have the book. Their shipping is very cheap if you use SAL since it goes purely by weight with no handling charge. Takes about 1 week to get to Singapore. Now with the yen at an astronomical rate though, if the book is currently available in Singapore it might be cheaper to buy it from kino (assuming they haven't adjusted the prices yet).
If its not too troublesome, can you include the ISBN number for the books you have recommended recently. I am particularly interested in this one.