I'm not even really a flourishy guy and not even sure if most of these video clips are still available... but quite some time ago I saw some clips on Steve Fearson's site showcasing some of his friends doing some work.
The first was this insane looking flourish by Tony Picasso, where he had a deck, you saw his hands start moving around in a blur, and he had packets of cards IN-BETWEEN the fingers of both hands (not like Sybil, think piano card trick) with a packet between. never seen anything like it.
The second was from a guy named David Ren Jenkins where he had 6-8 signed cards, I believe, had someone shuffle, he took the pack back, separated the deck into about two equal halves between his hands, and started to do some of the most beautiful slow type flourishes simultaneously with both hands, consisting of one handed cuts and revelations, both hands mirroring, with him eventually revealing all the cards. My hands cramped just watching it.
Does anyone at all know what I'm talking about?