Here is an awesome way to increase your performance with the icecrown raid by more than 500% and it only requires 2 addons.
First of all make sure everyone gets the following 2 addons.
AVR – Addons – Curse
AVR Encounters – Addons – Curse
The first plugin gives you a virtual overlay on top of your screen, while the second one acts with the first and gives you extra bossmods.
Basically when they are used together the add in circles and other visual aids showing you the radius of spells, where to move during the first, and places to avoid standing.
Here is an example of the mods being used to show you just how awesome they are together.
Heroic marrowgar –
Putricide malleable goo –
Also even if your raid group refuses to get these mods, you can still assist them by telling them where to go and where not to go because the mod still shows you all the secrets of the raid bosses.