If you want to farm Flame-Scarred Junkboxes for a chance at BoE epics, I found an amazing place today. In north-east Deepholm, at the Verlok Stand, there are a ton of mining troggs wandering around on a ledge. Every mob is Humanoid and I had 10 Junkboxes in half a lap around.
Pic: http://imgur.com/KheqJ.jpg
The mobs are packed very tight and you need to be extra careful. I have a "Picksap" macro that will sap the closest target and pick it's pockets. I know there are fancier pickpocketing macros around but I like the one I made, sapping the current target is nice for manuevering around on the crowded bridges.
Code:
#show Sap
#showtooltip Sap
/cleartarget
/targetenemy
/cast Sap
/cast Pick Pocket