I made a post yesterday about some tips on inferno. As Saltychipmunk said, it's much more about "exploiting" them than it is about hard stats. Once you get past act 1, most of the elite mobs will 1-2 shot you no matter how much health, armor, resists you have. It really sucks for my Monk because it makes them practically useless except for every 20 seconds when I can become invulnerable for 3 seconds because you get insta-gibbed as soon as you run in range.
I'm not a pro at Inferno, but I think from what I've read and from what I've seen personally, the "guide" I put together could help a lot with beating it.