[ask] finding ayu CDs in singapore

[sunny]

i'm currently here at singapore for holiday from 24th march until 4th june

anybody can suggest places to find ayu CDs? and it's even better if they have the old singles... such as Boys & Girls, A, Fly high.. etc...

i already visited some places :

01. HMV at hereen
yes..it's such a fun place to visit... but still not so many oldies stuffs
and the price is regular

02. gramaphone
sells new products of ayu, no oldies in regular price

03. music store in chinatown ^_^
i forgot the name, but it sells chinese & japanese products in cheaper price
arena tour 04 DVD is only 17 SGD.its original n not bootleg. but no oldies stuffs


so.. is there any other places to visit?
i heard sembawang sell CDs in cheap prices. can somebody tell me how to reach it? by mrt?
and please inform if u know any oher nice places to ind old ayu releases

thanks a lot i'm enjoying my time here @ singapore