Dire Maul - West (best to use south entrance to the west side).

In every instance made in all of Dire maul there is a chest spawn & usually a Dusty Tome spawn. In west, there are four spots that the chest spawns, two of which can be gotten very quickly & with few mobs. There are also two Dusty Tome spawn locations (that I know), but only 1 location is easy to get to....just so happens it is about 3 feet from one of the chest locations.
In each chest there is a lvl50-55 green, some are perdy good, also some change & 1 in about every 25-50 chests have a blue BOE usually worth 60-100g. All the greens dc into Greater eterenal essence & illusion dust, Or you can vendor most items for about 3-5g a piece or sell on the AH. The Dusty Tomes are where the real money is though....90% of the tomes will give you a junk book "nat pagles extreme fishing..." and pocket lint - the rest of the time you will get one of any of the blue class books (each sell in AH from 45g-90g) and an equal chance to get Furor's Compendium of Demonslaying (Warriors epic book) = anywhere from 1500g to 2400g. I have found several now and all sold within a few hours on AH for 2000g
http://wow.allakhazam.com/db/object.html?wobject=416

Now the strat... You enter west on south side. The tome & chest spawn location is in the initial room you come into, before you get to Shen'dralar Ancient. As you are looking at the room from the portal, the chest will be across the room on left side (there is another spawn location on the right side - but after you do this a while, you will see it is more profitable to only look for the left side one).

My hunter collecting Bloodvine and voodoo dolls from Zul'gurub(easily doable naked).
I collect a total of 7 voodoo piles and how ever many herbs i find. This particular run i got 5 different voodoo dolls(10-15g) and 3 bloodvine(20-25g).
My record to this day is 6 bloodvine from one run :). Of course the prices depend on the server, my server is rather low i'd say, and they sell pretty fast.

It is Possible to solo this, if you have a AFK Friend or something to keep you in raid, like this!
Summon pet, use Eyes of the beast, ( pet NEED Dash/dive ) go towards the Enemys, Dash with pet!
Run Quickly Away, pulling all mobs from the "Herb" you want, and then, You can Easily Pick the Herb without much problem, The longer you come into the instance, the harder, i've Even Solod the Vodoo thingy ( the one BEFORE Raptor boss (The room before him) So its not that hard)
You get into combat, so you need to run away to a safe spot and Feign Death when you get it. Failed? then Ress pet, And try again, And keep doing this until you get it. Watch out for : Bats, They are fast, Berserkers, They are even faster. thats all for today!

If you arent saved to the instance you can simply zone out leave party and get invited by someone else, if your saved, zone out wait 15 min and zone back in. The instance is reset if you see the Orange text once you enter.