Hey all, I haven't really had anything to contribute in terms of WoW knowledge thus far, so I thought I'd share this grinding spot I found which works particularly well for arms warriors due to the talent:
Second Wind - Spell - World of Warcraft
The mob you will grind is located in Howling Fjord:
Thornvine Creeper - NPC - World of Warcraft
Drops of interest:
1-2 Crystallized Life - Item - World of Warcraft - 18%
They can also be herbed if you have herbalism
These mobs have an ability called Entangling Roots - Spell - World of Warcraft which does basically nothing to you whilst fighting them. It does, however, proc your second wind talent, causing you to regenerate health and generate rage, despite the ability causing it to do little to no harm. This allows you to farm them endlessly without having to stop for food.
Although it might not work as well for you, I found this to be a great grinding spot because of the unlimited health regen and the fact that they were fairly easy to take down.