This weekend, Toronto was impossible to miss at Miami's Winter Music Conference and Ultra Music Festival. Currently, five Torontonians occupy the number one and two and slots on the electro house chart on Beatport, which has become the de facto standard website for legally downloading electronic music, and a major player in the Winter Music Conference. Additionally, an Ontarian holds the number two spot on Beatport's tech house chart—Londoner John Acquaviva with "Sofa King."......