I finally beat Act 5 Hell a couple of days ago. Killing Baal isn’t so hard, but getting to him is really painful since there are Gloams (or Burning Souls, or whatever) everywhere. Even with max lightning resist, that’s pretty painful, especially when they are uniques and minions. I need to find a good SP map and do some runs on Hell Meph to pick up some better equipment for my various characters, so I guess that's the next order of business.