To All Players -
I'm not worried about the money. As far as I'm concerned, it's all just flavor to add to the story...same as your equipment, weapons, histories, magic spells, et cetera.
For the sake of clarification, though, assume a Crown is one Gold Piece in D&D terms, with Eagles being Platinum, Commons being Silver and Pennys being Copper. That's the monatary system of my little home made D&D world, and it sounds good for this too. Assume everyone has, lets say, 50 crowns on 'em.
jp