QUOTE(Flame Haze @ Mar 6 2013, 10:55 PM)
The best japanese textbooks can only be found in Kinokuniya at top floor, KLCC. Note that the store is divided into three parts, the English books part, Japanese books part and Chinese books part. You should be going to the Japanese books part, Language section. For beginners, I would recommend Minna no Nihongo I (JLPT N5) and Minna no Nihongo II (JLPT N4). Genki I and Genki II are also not bad and covers roughly the same stuff as Minna no Nihongo. Note that for Genki series, the translations for the Japanese text comes together in the same textbook while for Minna no Nihongo, you have to buy the translation book separately.
And oh, the books are wrapped up in Kinokuniya, so if you want to flip thru them, bring them to the counter and ask them to open it for you.
I'm personally using Minna no Nihongo to study Japanese. Doesn't come cheap 100+ bucks per book, but great value and very efficient if you are self studying.

Thanks you the input, it would be of great help.
Originally I only intended to learn speaking, listening (well as in understanding what they say), since understanding kana alone won't do much except well ya, you can read stuffs out.
But then after all, I realized there is nothing wrong is learning all together anyway.
Motive wise, hehe... I traveled to Japan twice, I liked there a lot but it's a shame that lack of proficiency in nihongo serves as obstacles... And also partially, I watch Detective Conan a lot, I feel like contributing to the subbing community should I achieve certain level of mastery.