I go to fubon to get the cheapest young thai coconuts in town (usually between $1.29-$1.79)
also frozen Durian
baby bananas (not organic, but a fun treat)
unusual fruits like rombutons and lychees, and sometimes they have huge cheap papayas
and before the Fukashima craziness I would buy seaweed from there too.
sometimes they also have good deals on big bags of cashews in the restaurant supply aisle,
oh and they have organic Maitake mushrooms too!
thats about all I get there but it is worth the trip every now and then even.