A) +18 Stam or +18 Block, depending on your needs to mitigate more damage or get and extra 180 health
Originally Posted by Ady
B) Stam gems all the way. I used to believe that each slot should take its own color gem. Now, just get stam. You will need it come expansion
C) Get the Chest of Stoicism. You will be able to use it effectively till around level 80.
D) Your Def is good at 500+. I currently range in my def as a tank from 516 to 531 (depending on what I am using), and I can tell you that I lost 34 points when I copied over to the PTR. Because of the gear change I now have a Def of 497 on the PTR. This is using the same gear I get 531 defense from on Live. Your defense is just fine. If you start to have problems in places like Kara, learn to switch from a shield to a second weapon. Gain your extra rage, then put your shield back on and let loose.
"By Grabthar's Hammer... What a savings"