You're very welcome! I am glad to be able to help where I can - I had difficulty finding help on how to properly prepare for the interview, so I don't want anyone else in the same boat. I received the interview date letter approximately 1 month after I received the waiting list letter.
Yes my interview just happened on March 23, 2012 and I received my CSQ there

. My interview was also in NYC at a building in Rockefeller Plaza (I would assume yours will be in the same place). The officer who interviewed me, his name was Christyan and I am sure you will have him as well (I believe he is the only one who does this currently for the US in New York and he said that he travels on a weekly basis to NYC from Montreal, where he lives). He is very, very nice!