I am going to list the items from least random to most random and also I will put the most likely place(s) to find each item

First the common items, can be found within an hour or so of looking in the right areas they are kind of in order of increasing rarity, some are kind of fudged/estimated

1/1 bracs - Found almost every time off of tarak, also common in caves and in desert

Gold bars of all values are randomly dropped by the serpent in Thumperville

10k bar - found off of like every other talinar, or pretty frequently in the caves

100k bar - found interspersed with the 10k bars off of duke and in the caves, not very rare at all really

Seldari Long Bow - found very commonly off of seldaris or assassins (forest, s-1, s-2, etc)

Seldari Gs - found pretty commonly off of blade masters in s-2 and cyressa's lair, unless you are looking

poison pearl - GL lair or sewers, or any of the caves, etc.

Pally Guants - found in about 1/6 dukes or so

Iron Resp Helm - Found off of every 1/8 dukes or so, I've never seen them any other place

Lightning bracs - found very commonly in duke lair, Ghoul Lord, and seld-2

Seldari Eye - Found pretty commonly in s-1 and s-2, unless you are looking

Ma Grips - +0 form found pretty commonly in ice floes, and also found in caves. +1 form found very rarely in the same places, also off Banshee

Ice Storm Twig - found in caves, gl lair, duke lair, etc

Mujaba Dagger - found pretty commonly off of slavers in tarak lair and around mujaba lair

Stout Helm - does pretty much nothing, but can be found in caves as a novelty item

FB Ruby - found pretty frequently in the caves and gl lair if you are actually looking

3/3 ring - found in gl lair, caves, duke lair, all sorts of places

5/0 ring - i seem to find these more than 0/5, may just be me. found same places as 3/3 rings

0/5 ring - found same places as the other rings

Succor Boots - Found in tarak lair pretty frequently, also found in caves and ice floes

Now for the things that are actually findable, though it may take a good bit of searching

Def Axe - found off of mujaba, warlord, or some of the npcs around mujjie lair

Camo - found off of assassins in s-2, or cyressa lair, or randomly off of bandit lord and scouts and brigands

Enmiss Bracs - drop pretty rarely off of duke and off of gl.. thats the only places ive ever seen them drop

Alerian Random Pot - found in caves, any of the lairs, etc. basically found anywhere, brigands seem to have them alot, though that may just be me

Pink leaf - found in tarak lair pretty frequently, found in clicker/garg, caves, etc

Def hally - found off of crayman in slimey lair, thumperville, under tarak, etc. best found when not looking at all

Def Gs - found in clicker/garg, or off of blades/blade masters in s-1, s-2, cyressa lair, etc

0/7 and 7/0 rings - found in any of the lairs, the caves, etc, same as the other rings

Scry Diamond - only ever found these in the watcher cave, dont know if they can be found elsewhere

Enchant Twig - found two in alerian caves, dont know if they can be found elsewhere

EP bracs - found off of Phantoms and Spectres in tarak lair, this is the only place I have heard of them dropping

MA Sandles - found off of guards in duke lair, or off of Ghoul Lord, or in desert off the Banshee

Now for those items which, according to some people, dont even exist

Dread Ls - found off of ghoul lord or off of duke talinar, never heard of them dropping elsewhere

Obsidian Dagger - found off of duke or off of assassins in s-2 or cyressa's lair

Silver Short Sword - found in desert, thats the only place ive ever heard of them dropping

Bone Ring - I have no idea whatsoever where these are found because i honestly dont think they even exist any more, hehe. never found one and have never seen one in nork. Possibly found on Duke.

this is the list as I see it anyhow, some of the items can be switched around according to who you ask, but this is about the way it is

-Yeti