As my series on leveling is finished I'm back to talk about healing, gear and specs for patch 3.2. I'm writing an article about general gameplay in raids (that will be way too big ...) but I wanted to point you towards that article from Banana Shoulders: Bubble Spec: the New Hotness.
It's about the "new" Holy & Prot spec based on using Divine Sacrifice. Siha calls it a Bubble Spec and I like the name, it links it to Disc priests shields (and it is damage prevention), and it uses the paladin bubble to save ourselves when we use it.
Clearly, anyone can see uses for this huge raid damage prevention on bosses like XT-002, YS, Anub ... but as crit strength has gone down since patch 3.2 my previous preferred spec (51/2/15+3) has lost some of its punch, pushing the Bubble spec to our attention.
This is not news and several guilds have been using that spec already, but if you've not yet give it a try and see if it'll be the 3.2 spec for you.