Also, I have never found "that vortex thing" to be a particularly useful skill, dump it and get something like sweeping wind or Deadly reach with the armor+50% armor or 18% all dmg increase rune (which might serve to replace MoC, which you can substitute for MoE).
As a side note, deadly reach is extremely useful for kiting nasty mobs that you can't sit and tank.
The other thing I would say is get a shield with at least 18% block, double resists, and crit on it, Then buy Helm of Command with the one resist you are stacking, dex, and crit rating.
This will drastically increase your defenses. Block works to mitigate more than just regular attacks, arcane beam and fire chains ticks can be blocked as well which makes it very forgiving. You can pick up a helm of command like that one for fairly cheap.
As a side note, deadly reach is extremely useful for kiting nasty mobs that you can't sit and tank.
The other thing I would say is get a shield with at least 18% block, double resists, and crit on it, Then buy Helm of Command with the one resist you are stacking, dex, and crit rating.
This will drastically increase your defenses. Block works to mitigate more than just regular attacks, arcane beam and fire chains ticks can be blocked as well which makes it very forgiving. You can pick up a helm of command like that one for fairly cheap.