Is there a healer UI that auto targets low health ppl?

[Ughmahedhurtz]

No, there is no mod/macro/etc. that auto-targets the lowest health person while in combat. Outside of combat, you can still do some of the smart-targeting stuff.

[thinus]

I think Blizzard has said that this is the kind of thing they don't want you to be able to do hence the nerf to the decursive of old. You, as a player, must make the decision who to heal, who to decurse/dispel/cleanse, etc.

[Ughmahedhurtz]

In combat, yes. THey moved those calls into protected functions, so that they can't be used by addons unless the user is out of combat.