Nuitarin's current interfaceThis is a screenshot of my interface while tanking Hodir on 7-17. I labeled most of the addons I use where they show up on the picture. Its mostly standard except I have a feral specific addon called FeralByNight. It provides a frame that suggests what move to use depending on how much rage/energy you have and what debuffs are on the target. Its usefull for cat dps but not so much for bear tanking. It also has a proc monitor to tell when trinkets/idols/enchants activate. I use the following macro along with a separate button for maul and demo roar to do most of my tanking on a single target:

/castsequence reset=6 Faerie Fire (Feral)(), Lacerate(Rank 3),Mangle (Bear)(Rank 5), Swipe (Bear)(Rank 8),Lacerate(Rank 3)

This keeps FFF and Mangle on cooldown almost always and maintains Lacerate on the target in most cases. Parrys and dodges by the boss when tanking in mitigation gear with low hit and expertise sometimes allows the Lacerate stack to drop, but using the macro helps my situational awareness.

I FRAPSed the hodir kill so you could see the interface in action: YouTube