Situational awareness is a kinda big thing in WoW. The best players seem to not only have their toons very well geared/gemme/etc, they know the fights inside and out, knowing their own role, and the roles of everyone there, but they also seem to have this innate ability to know EVERYTHING that is going on, from the tank, off tank, Main healer, raid healer, OT healer and all the weirdness happening with the DPS.
Um, that's not me.
Standing in the middle of the fight, thwacking monster crotch and trying to avoid the fire, I am usually just about overloaded, at least in the more challenging fights (ICC 5 mans and up) As I've mentioned before, trying to keep an eye on things (watch my aggro, keep a safety eye for mobs on the healer, etc) is something I like to do. And I have problems doing it.
And that's only as DPS.
Now that I'm trying to tank a bit, the workload is up a notch (mainly because you HAVE to know the fights) but also because you are now DIRECTLY responsible for the well being of the healer, as well as trying to keep the DPS as safe as reasonably possible.
With your screen filled with monster crotch (not to mentione a bunch of other stuff), this can be a challenge.
Having the healer as focus can help, but that still only puts a small green bar up top that can be tough to see. Even moving it around only helps to a degree.
The other day I was watching Kattastrophe healing in her guild's 10-man attempt on Ony, I watched her do the whack-a-mole thing to heal everyone.
"Man, something easy to use, really obvious and visible, would be really nice to help taunt/etc folks getting attacked by loose mobs, the healer especially."
Then the thought came: I wonder if the add-on Vuhdo would let me bind OTHER spells to the frames. Then it could be as easy as a quick scan over to the frames - see someone in trouble (ie, taking damage that they shouldn't) - and then left click for Righteous Defense or maybe right click for Avenger's Shield (or even Hand of Reckoning)
And so, I will have to try this out. There's no guarantee that Vuhdo will LET me put alternative spells into its guts. After all, Pally Power (an addon for Paladin Blessings) will NOT let you control anything other than pally blessings. It may be that Vuhdo is coded to only allow healy spells into its hallowed clicky boxes.
Just a thought, and a radnom bit of musing... I'll try it out and let you know.