Oracle II is worth looking into. I'm nowhere near heroic, but I do LFR/Flex (not in a raiding guild, so I just raid casually) and it's pretty amazing there.
Tried Oracle II over the weekend definately better than Taunha. Only complain is the lack of Hotkey casting for Mouse over of healing rain, which is important for heroic thok. I used Taunha for that fight.