lighting prices

hi -

i am getting married in September 2011 at wading river, and I am looking to get some lighting prices. My wedding will be about 140 people in a relatively small room (140 will just fit). How much would it cost to do some lighting for such a room? I am not thinking anything like dj lights or any moving party lights but rather what i think is called 'uplighting' by the walls and columns to give the room a purple glow. The colors of the lights do NOT have to change throughout the night.

Any price info would be much appreciated. Thank you.