696 is a very simple, locked-in rotation.

Six-second cooldown, nine-second cooldown, six-second cooldown, lather, rinse, repeat. You'll need one point in Improved Judgements over in the Ret tree to make this work.

The 9 sec cooldown abilities are Holy Shield, Judgement and Consecrate.
The 6 sec cooldown abilities are Hammer of the Righteous and Shield of Righteousness.

So you open with the shield. Pop Divine Plea, then go to town with the 696.

Loot the bodies, move on to the next set of mobs. Don't let Divine Plea fall off if you can possibly avoid it.

It's been done already:
http://www.wow.com/2009/03/17/the-light-and-how-to-swing-it-the-tankadin-for-dummies-again-ii/

http://www.wow.com/2009/03/17/the-light-and-how-to-swing-it-the-tankadin-for-dummies-again/

Don't open with Avenger's Shield if you don't need to - save that for the casters. I taunt a far mob while running in and use Hammer of the Righteous. If there's something that hasn't been hit I'll Judge it, otherwise Consecrate, and then SoR whichever mob the DPS decides to focus on.

969 is your rhythm that you always have as a basis. Knowing when to pop out of to use your other tools and then being able to fall back into that rhythm is what makes a good Protection Paladin.

http://www.wow-pro.com/files/Tannyr_FullRotation.jpg

a visual presentations of our 96969 rotation really helped me out. Here are my keybindings (which differ from the picture, but still follow the 9/6/9 sec CDs):

1 - Consecration
2 - Hammer of the Right.
3 - Holy Shield
4 - Shield of Right.
5 - Judgement

1-2-3-4-5-2-1-4-3-2-5-4

Picture it, feel it, practice it, and practice it some more, and it will be second nature in 5 min tops.