2 places i can recommend:
1) Borders
2) Kinokuniya at Takashimaya - they have better sellection for books actually. and its rare for them to not have any book titles.
both of these places let u do special order for books. Borders is especially good. i've ordered a few books from them. but i'm not sure if they impose x-tra charges now, like for their CD's. Kinokuniya have the same service too.