"If you're looking for RAM, memory cards and thumb drives, head straight to #05-02 (at outer ring, corner). Their stuff is the cheapest, and surprisingly genuine (kingston memory allows you to check)"
"If you're looking for cameras, head straight to #02-91 "Camera Talk", right in front of the escalator. I sacrificed my sanity to hunt for a reliable shop, and found this one. Low price w/o compromise"