Low health warning addon
 

i remember about an addon, but i can't find it anymore, btw, this addon
just use Say/Yell/Party/Raid or desired chat channell, with a custom text, it was turned on when the player reach a desired value of mana, health, or if an enemy where spoted, this last case was turned on by an hot-key

it was called Sentinel Tower, or something like this... i realy can't remember the exact name, but i'ts a pair of days that i'm searching for something like this :rolleyes:

My addon Emergency will play a sound at low health/mana, not sure if that'll suit you.

http://www.wowinterface.com/download...Emergency.html

the real utility of this missing addon is that wakeup the healer, and stop the party when the mange is out of mana:D