HeLp PLz

Okay I am a 17 year old female living in the Bronx. My 18th birthday is on May 14th. I plan on going out with a big group of friends (guys n girls) on saturday May 15th to celebrate my birthday in NYC (Manhattan). The problem is that I have no clue as to what I should do. We`ve done the dinner, movies n arcade thing for so many years already. I want to really "live it up" for my 18th b-day.
I was considering maybe renting a stretch limo to take us around but I still have no where to go. Any ideas? I`m desperate... All ideas are welcome...