Topshop (Cute thongs/G-strings!!)
Miss Selfridge (nice basic tops)
FEP (cus they import stuff from Japan)
Bugis Village (cheap and nice!)
Ego (certain tops which don't look too jappish!)
Hangten/Giordano (Cheap basic tops!)
I usually shop online more often 2...
My favourite online stores are:
Supre
VS
Abercrombie & Fitch / Hollister (tho' I've not got anything for myself yet, their clothes sure do look tempting...

)
Yahoo Auctions ( U can get stuff NA locally here!)
UrbanOutfitters (Droolsome but ex shipping!

)