I'm getting married in Newport at Castle Hill, end of summer wedding.  I'm trying to put together a budget but have no idea how much florists cost.  I'm not ready to pick a color yet, so I can't exactly say what types of flowers I want (and I know that price varies by type of flower), although I'm leaning toward light blue/lilac as a color.  I do know that I don't like large centerpieces on the tables because then the guests can't see each other.  Can anyone give me a range for the cost of flowers for church ceremony + Castle Hill reception?  The florist doesn't have to be someone located in/near Newport (I'd actually prefer someone not located in Newport because Newport vendors tend to be overpriced).
Thanks!