Bait & Switch - Reception Hall

I am getting married on June 16, 2007, less than two weeks away. I got a call this morning from the hotel where we booked the reception and they told me another party booked on the same day has more people coming than expected so they are changing our room. We originally booked the ballroom and now we are being moved downstairs to the hotel restaurant/breakfast buffet area. In our contract it says they have the right to re-arrange banquet rooms, but this area was not presented to us as a banquet room when we had the initial tour. It was shown to us as the breakfast area. I have been on the phone with the events coordinator complaining about this last minute change and she is not budging. Is there anything I can do? I saw a picture of this room and it is definitely not anything close to what we thought we were getting.

-Stressed Bride to be!