the Makers Faire is in Queens, NY at the New York Hall of Science. There's going to be robots and weird crazy stuff http://makerfaire.com/newyork/2012/index.html I was planning on taking the train down since im not crazy about driving around nyc.
I am a train proponent, I live in Flemington, NJ and have previously done this kind of commute. I usually drive to Newark park then take the train to the subway. We can meet in Flemington and drive together if anyone else is interested.