Wedding On A Budget

I am getting married april 30th 2009 and Im doing a beautiful wedding on a budget! so far Ive only spent about 900 dollars on my ceremony and reception combined. With my dress and accessories and my fiances tux, shoes and his groomsmens garments and what not ive only spent less than 1500 dollars. My colours are green and chocolate and Ive been trying to find beautiful flowers that wont break me. My budget is 5,000 dollars and I was thinking possibly green and chocolate cymbidium orchids with jade roses if it doesnt break me. Anyone have any feedback on how much it would cost to create just bouquets and buttonieres? Thank you