I was in the Chinatown Mall yesterday getting my Christmas dim sum out of the way (Christmas Eve was Sizzle India for those playing along at home). After lunch, while the Mistress of Spices was getting a ball ball drink, I did my favorite activity, look at menu's.
I noticed that the very fine, and probably only chiu chow style place, Shiu Wah, has a late night menu. It starts at 10 pm and features most of the house specialiites, all at slighter lower prices. It would make a great stop on any chow world tour.
For reference to Shiu Wah, I've attached a report from Zim, with some additional comments below in the thread. For the splendor of late night chinatown dining in general, look for a report by ReneG on Triple Crown.