I am the photographer at a firemans ball. What kind of minimalist (cheap) set up will work with good results. I have a canon eos rebel t1i with 18-55mm 1:3.5-5.6 is and a 50mm 1:1.8 II ef lense. I am also considering buying a canon speedlite 580ex II. flash difuser? I dont have a background. could I use sheets? if so what color. white, black? what about additional lighting???