I finally found (bought) the Spontaneous Inventions DVD of Bobby McFerrin. A must have! Now i'm thinking in upload some of his video concerts i have to youtube or google video. Gonna do it and post it soon here and on my delicious.
I found a 2005 concert of Bobby McFerrin in Flac free to download (songlist here). But you must ask for FTP login (enter it here).
UPDATE: you can see some McFerrin videos: