I have been doing weekly updates to the Cataclysm gear listing on the site (accessible by filtering for patch 4.0.3). One of the trickiest pages is Trinkets. There are an obscene amount of trinkets in Cataclysm and I'm sure there are even more healer ones yet to be discovered. There are also the epic heroic mode raid trinkets which will be added at a much much later date (probably post-Cata, I doubt they'll beta test heroics... who knows).
There is a lot of Cataclysm gear in the site now. I have the goal of listing everything ilvl 333+ on the slot pages so you know what is what. Ranks right now are based on the weights from a few posts ago. I've unfortunately had to rely on this heavily since there has been such a large amount of items. The best items according to this are int/spi/haste ones.
I have also had to add in some of the pre-4.0.1 spirit items from ICC that we didn't use before. This includes the Marrowgar neckpiece, Sindragosa ring, and Deathbringer cloak. These are some of the best items now.