Trust me on you need this, if you raid icc this will stop you form being a noob on rotface and many other bosses. You need both to work right
http://www.wowace.com/addons/avr/
http://wow.curse.com/downloads/wow-addons/details/avr-encounters.aspx
http://www.wowace.com/addons/avr/
http://wow.curse.com/downloads/wow-addons/details/avr-encounters.aspx