I use a druid for heals and their AoE heal does a decent amount of healing, they are great for movement fights where they can heal just as effectively running around as when standing still, HoTs FTW.
I agree with you that the movement fights do make things more interesting in the latest dungeons. I simply have a left and right stafe key assigned to move my toons around as a group.
ISBoxer with Click regions really helps with healing using Vuhdo or Healbot.