thanks for the nice comments people!
hande - i also see the logistical problem with a 'party' inventory idea...especially if the game will/does have unique or quest related items.
this is why i would be happy with even just the money splitting idea.
also, i have to agree with how you proceeded with the potions. smalls were sufficient for quite some time, then large restores took over as they replenished the entire health/mana bar.