Earlier last week I updated my retribution guide for Mists, so if you're still scratching your head wondering what your talents do or why everything and its mother is spitting out holy power then please feel free to give that a look. Part of that update was to plug in the latest stat weights that help us determine, among other things, which pieces of gear we want and which ones we could probably do without. With heroic dungeons and three difficulties of raids available for plundering, as well as Hallow's End fast approaching, this is a great time to figure out which pieces you'll want to set your sights on.
Before we jump into it, however, a quick examination of those aforementioned stat weights shows us that the main stats we're looking, aside from strength, are hit, expertise, and haste. Note that pieces that natively possess hit and expertise are particularly nice because it will make reaching those caps much easier.
Remember that our tier won't reliably drop until Terrace of Endless Spring and Heart of Fear are released, but there is a small chance it will drop from Sha of Anger. Also keep in mind that gear out of Mogu'shan Vaults has raid finder, normal, and heroic equivalents.
I am going to try to squeeze this all into one post, so I hope you'll forgive me if I refrain from my usual snarky one-liners and bad jokes in order to provide useful info like drop locations and item costs.