what keeps you from using cm specc?
You also could try a Frost build with Ray of Frost, Nova, blizzard, and cold blooded. I tried it once any it's survivability was pretty good the only down side was / is i also had frost hydra witch is shit with Demon buddy, it doesn't cast it very often and same with blizzard. If they would ad a touch of "Smart Logic" on the behalf of blizzard and Hydra i think the spec would be good for a good ol' kite nuke.
same build as jsirik, but remove glass cannon for unstable anomaly, it will save your ass everytime(almost) you are about to die.
my death/hr went from 1 to .2 just cause i swapped passive to that.
it helps against reflect, explode fnatics, and the after death explode ball of death.
Also, with 350k dps buffed, i would stick with mp2-3 farming. its not worth it to farm mp 4-5 on wizard period.
You would need a barb/monk to farm keys with that.
i hit 100 paragon the other day and now im tryin to maximize my magic find in game, so far at mp5 it caps at 500