I have managed to defeat the second boss on Act 4 Inferno and working my way to Diablo. I have killed every champion pack, not skipped anything and managed to kill all the end act bosses with 5 stacks on the MF buff.
My spec is a little different then these arcane builds, atho they do seem interesting so ill give them a try!
this is my spec:
My stats are:
6k hp, 45,550 dps (with weapon buff) 24% crit, 2 attack speed, 250+ all resistances.
Good stuff, build is solid! Never was a fan of the electrical schools unfortunately, magic missile won my heart because I stutter step!