basically, if you dont own Indecent, or if you do and you don't think you're ready to do the "secret move", then Witness is the way to go. It's virtually sleightless, and so leaves lots of room for patter and performance - which is great.
THere is one condition though, its not a gimmick, but it will require something EXTREMELY EASY to aquire - especially if you're a card magician. The trick packs big, and is very simple - both to perform and to the audience.
Plus if you join the newsletter for free, you recieve tips and ideas for improving the trick.
I would seriously sugest getting this. I perform it all the time at school, and its AWESOME!