Green Ronin's Black Company Campaign Setting book, if you can still find it, has some pretty good ideas in it for changing to a lower-wealth, lower-magic, higher-death setting.
Among its ideas:
1) Weapons and Armor have special mastercraft abiltiies, instead of just being magical, or a plus to hit.
2) Magic is VERY low-powered until the wizards hit 10th level or so.
3) The main enemy are men - there are no elves or dwarves, or gnomes or halflings, or half orcs. Only Monsters that exist are some of the most alien otherworldly horrors.
4) Combat contains an instant-kill mechanic that pops up on the occasional critical hit.
5) No clerics or conventional healing magic; all healing converts lethal to nonlethal damage, which must be rested off in the usual fashion.
6) No gods, but there are godlike beings.
Really nice book to check out-- its only cheese to speak of are the place names and the character names. Your band might consist of people with names like Croaker, Sleepy, or Big Bucket, and you might be off to kill the otherwordly demon known only as Toadkiller Dog.
