What is the most romantic and creative idea to propose in NYC?

My girlfriend and I are traveling to NYC in 2 weeks over the weekend. She thinks we are getting away to be cuddled up and celebrate the Valentine's day in advance. And I plan on asking her to be my wife. My girlfriend and I are already semi-engaged, as I have already asked the question and she said 'yes'. :) But I didn't have the perfect ring for her and I would love to ask her to marry me again with the ring for the most beautiful woman that I have ever dreamed of. Since she already sort of knows that I have been looking for the ring, I won't be able to surprise her much. But I would like to propose her in a very unique and special way that she may be overwhelmed with the greatest and the warmest feelings. I would prefer not to propose in restaurants and traditional ways. Also, I am 22 yrs old graduate student who cannot afford to spend extravagantly. I would truly appreciate any of your ideas!!What is the most romantic and creative idea to propose in NYC?
take her out to dinner then go on a walk through the central park, and pay a musician who plays the saxophone to be at a certain spot and start playing as you start to get down on your knee
Get a horse and buggy and ride in central park, ask the big questinWhat is the most romantic and creative idea to propose in NYC?
ask her where in nyc she really really wants to go and ask her there itll be sooo romantic and cute!!!!
At the top of the Empire State Building at sunset.What is the most romantic and creative idea to propose in NYC?
the top of the empire state building is a fabulous idea for the most part--that's what my fiancee did for me, and it was incredibly romantic!--once we got up there. if you opt to do that, be sure to account for the possibility of very long lines in a very warm series of rooms. of course, once you get up to the top, and you see the new york city skyline silhouetted against a brilliant sunset, with the city lights just starting to turn on and glitter, it is truly a breathtaking sight.
What about the statue of liberty? You can take a ferry there and find a quite place to propose while the sun sets. best wishes :)