A Monster/NPC-Set with cards would be brilliant! Maybe one can think of using a larger format for the cards to have enough place for the suggestions of HedgeWizzard. Something like the Carreer-Cards could be just the right size. Bringing in some order so that the GM quickly finds what he is looking for could be accomplished with color coded frames around the cards... Talking about Monsters... what about Mutations.... sounds like a nice playing field for Card-Designers ;-) Add a booklet with some more background material and a deck of special Action-Cards plus some Standups and you have another best-selling box...