New york hotels?

I have booked a flight to indiana from the 2nd december to the 5th but i am struggling to fine a hotel that is central in manhattan, the sunday and monday do not seem to be a problem, but when i put in the 2nd 3rd 4th and check out the 5th they all seem to be un available i have a budget of about $1000 ish for the 3 nights and i thought i would not have a poblem. does any one know of any hotel that is available at the moment.. can any one help
Answer
The following websites http://uk.hoteldiscount.com/hoteldiscount/uk/index.html http://www.hotels.com/ http://www.hotelclub.com/ are brokers and agents which may be of help. the smooth hound system http://www.smoothhound.co.uk/ has recently started to list overseas hotels in its directory. the hi hostel in new york http://www.hinewyork.org/ may allow to book a dorm for yourself if they have availability to do so.