I've been thinking about do the bonus stuff in the GBC version. III is one of my favorite games ever and I just got a Gameboy player for my Gamecube so I won't have to stare at the 4 inch screen anymore.
The gameboy version is one of my favorite games of all time too, so much nostalgia for beating Zoma for the first time. I hope if they remake DQIII full on they include all of the great stuff the GBC version had.