This is my sorter. Video is long, but it's hard to explain redstone things in English.
[ftp=ftp://www.youtube.com/watch?v=Na04SdjeCiw]
[/ftp]
Map download-[ftp=ftp://www.2shared.com/file/jlCkPUVP/1_hopper_sorter.html]http://www.2shared.com/file/jlCkPUVP/1_hopper_sorter.html[/ftp]