I'm getting ready to try my hand at healing in heroics. The suggestions I've seen here are to have +1200 healing and +120 mp5. I'm sitting at +1000 healing and +195 mp5. Should I sacrifice some MP5 in order to pick up another +200 healing? Specifically, I have a staff with +50 spirit (and a spiritual guidance/improved divine spirit build), should I drop this in favor of something like the essence focuser?
I'm really trying to stay balanced between healing in instances and my miserable arena team, but I'm worried that I'll just fail at both (I don't mind failing at the arena team).
http://www.wowarmory.com/character-talents.xml?r=Undermine&n=Friarduck
BTW, I'll be crafting the last two pieces of the primal mooncloth set shortly.