I enjoy your blog and was wondering at level 70 could you provide a template to farm old instances ? I dont have wrath yet so just something to keep me busy.
I would suggest going Protection and using a build like this: 4/51/6.
I think that should give you a good build so you can AoE farm most older instances. Note that it isn't a proper tank build as it is missing Spiritual Attunement (no other healer) and Guarded By The Light (you get Divine Plea at level 71).
You might have mana problems. If you find you are, you might be better off with a Retribution build like: 2/5/54
You'll have to be a bit more careful, but there won't be any mana worries.