1st year nursing student looking for work experience in USA

Hi to anyone reading this!

My name is Louise, I am starting a 4 year general nursing course in Trinity College Dublin, Ireland in September 2011. For the summer of 2012, I want to travel to USA and try and get some work experience under my belt that's nursing related. I would love to do this in New York City.

Are there any facilities in NYC that would take on a student just finished their first year of general nursing? It can be shadowing a more experienced nurse, or some assistance, or anything, I just want to gain as much experience as I can! It does not have to be paid, volunteer work is fine by me

New York Presbyterian, Mount Sinai etc..Do hospitals run student learning programmes over the summer or externships that are free of charge?

Any info would be greatly appreciated! Thank yooooouuu!!