I think this is sort of what you mean. Cyril does the box vanish, im not quite sure what method he uses though.
http://www.youtube.com/watch?v=KRoqpre7nnI
Greg Wilson also made a variation on Daleys original effect called weighted aces its an extension, with a beginning. Its taught on his Double Take dvd which is a great dvd
Yeah, thats bone's anaconda dribble. He used to have a tutorial for it ages ago, i thought he was comming out with a anaconda dvd a couple years ago but its probably been delayed or canceled.