Taunt Anounce Addon

Hello fellow Tankadins, I am looking for a addon that will announce when someone has taunted off of me. Recently I participated in a raid with a warrior tank from another guild and was very impressed with his aggro generating abilities. Later I was told that he was taunting off other tanks to gain threat and I find this quite wrong on several levels. Perhaps if it could also announce if a warrior is using their new threat leach ability on me that could help as well.
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The threat leaching skill is a buff called Vigilance, you'll see it when you get it and it lasts 30 minutes. As far as announcing when someone taunts off of you, you can look at this thread. http://www.failsafedesign.com/maintankadin/viewtopic.php?t=10819
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http://armorylite.com/us/frostmane/fridmarr/