I like to stick to copper, silver, and gold piece coins. No need to add a more realistic economic system.
Also, I'd rather have all prices given in silver or copper coins instead of gold. Makes gold seem more valuable. No need to convert prices -- just redefine the old gold as the new silver and go from there.
_________________Marv / FinarvynDCC Minister of Propaganda
; Deputized 6/8/11
DCC RPG playtester 2011, C&C
since 2003, ADRP
Since 1993, OD&D
player since 1975
"The worthy GM never purposely kills players' PCs, He presents opportunities for the rash and unthinking players to do that all on their own."
-- Gary Gygax
"Don't ask me what you need to hit. Just roll the die and I will let you know!"
-- Dave Arneson