Need some pointers

[jmac]

Hello I am fairly new to tanking but very new to raid tanking. I have found I have a hard time knowing when to taunt off of other tanks, like when u get so many stacks of a debuff and need to draw or lose aggro to other tank. It is hard for me to see the stacks on each of us using DBM and seeing it in the chat bar is there a addon or something that will make this more visable?

[MellvarTank]

Power Aura's or a healing addon like grid/healbot/vuhdo.

You could also probably use Pitbull or Shadow unit frames, maybe the default blizz raid frames, or maybe even Satrina's.