I jumped on this for 200K just now:
Champion Immunity
365 Armor
40 Phys Resist
62 Resist All
Level Req Reduced by 11
3 sockets
Was that a steal, or just a good piece for me to get through Hell?
I'm a 55 Wizard, 8100 dps, around 2400 armor, all resists at 199 minimum.
You're probably going to have to use Energy Shield + right most rune for it (all resistances increased) to get through hell. The second boss in Act 2 will probably kill you at 2400 armor. With Energy shield you should effectively have 4k armor.
Got to Inferno again. This time with wizard. Still very difficult, but seems doable compared to monk. Gold mining seems far faster too because 20+ yard pickup + disintegrate convergence ray basically vacuums gold from areas.