Greg Palast did some great investigative journalism about the Florida election and published a book in 2003, 'The best democracy money can buy', I highly recommend it. The first 100 pages are a bit boring but that's because he's going over all the voting statistics, after that the book gets very juicy.

Were touchscreens used in Florida in 2000?

The man who broke this whole story was Greg Palast, the narrator and the man in the suit in this video. He writes for a British newspaper - The Guardian. His original article about this can be found at http://www.gregpalast.com/jim-crow-revived-in-cyberspacernby-greg-palast-martin-luther-king-iii/
If you're hunting for sources, you'll have to check out the book, "The Best Democracy Money Can Buy" - as they're all cited there and I'm not gonna type 'em out. heh.