Originally Posted by
Cerunnir
I wish to add that going with spirit on all items is superiour to going for haste\mastery pieces even when you feel your regen is more than sufficient. If you have high regen it allow you to dump mana into the higher throughput spells like flash and greater heal, aswell as use renew more freely. Not to mention being able to use prayer of healing much more often if needed.
I do tend to gem for throughput though. Using int/spirit in blue slots, int/mastery in yellow and int (jewelcrafting gems) in red slots. I also enchant with thoughput if there is a good choise in that equipment slot.