Hi, i'm new to the forums. I am shooting my second wedding in Feb. 2006 and I am going to be investing in some equipment to do it right. I did my first wedding (which turned out to be rather decent) with my canon 20D and the speedlight 580ex that goes with it. I don't have a bracket or any special lenses or diffusers. What I want to know is...what is VITAL for me to have that will make my photos better and the customer pleased. Thanks.