Yeah I discussed strategy with a Korean buddy (those guys are fucking professionals at gaming, I tell you what) and he said how inferno requires high resistance and dex, followed by vitality. Surprisingly, DPS is not that critical, it's more important to stay alive and whittle away at the boss's health. That doesn't help with elites who regen, but you can skip them.
What's EHP?
I can't seem to get past the Skeleton King on Inferno, so I'm going to retool my character and try with higher resistance/dex and lower vitality.