Hello!
This is something I've threw together after feeling the need to easily see the distance to our healers in raid (found it useful for fights like Iron Reaver).
I started out with an example someone posted on a forum somewhere (sorry whoever you are, should have taken a note of your name) on how to get the nearest healer to you in WA and I expanded from there.
This WA will list out all the healers in the raid and your current distance to them, if the range is above 40 yards the distance will be shown as red (you should probably adjust your position at that moment)
It will also tag healers who are dead with a red *DEAD* text.

Hope you will find it useful

Example image:


Pastebin with import string: http://pastebin.com/HpYt0v5f