SGL is opened till 3pm on Saturdays, and only one lady will be there, either Kim or Siok Goon. They don't keep stock so you'd better call early if you don't want to be disappointed (or disapoint your wife!). Give them a few days lead time if you are looking for a PowerBook. They are at the mercy of their suppliers, who, in turn, are at Apple's mercy...!
They close at 7pm on weekdays, not open on Sundays. They open at 10am. They are my primary source of Apple stuff. Been going to them for years now and have never been diddled.