So looking at the list of gear I can get, I kinda think I've reached the best I could do in 3.2 without resorting to pugging 25 mans or hard modes.   Or going back to old boring instances for minor upgrades.   Anyways posting up a list...

Stats Weights:

• MP5 = 1.89
• Intellect = 1.46
• Spell Power = 0.95
• Crit Rating = 0.62
• Haste Rating = 0.59

Helm:  [47681] - Guess this is BiS since 258 is impossible, doesn't seem too big a diff.

• [48582] +17.03 (Tribute 25)

Neck:  [Symbol of Redemption] - Maybe a bit of an upgrade if I try pugging ToC 25, minor upgrades below that, prob impossible upgrades above

• [47144]  +62.7 (Twins 25 Hard)
• [47930] +53.0 (Jaraxxus 10 Hard)
• [Charm of Meticulous Timing] +31.04 (XT 25 Hard)
• [Wail of the Val'kyr]  +14.97 (Twins 25)
• [Life-Binder's Locket] +12.99 (Saph/Maly 25)
• [Pendant of Somber Witness] +7.85 (Algalon 10)
• [Pendant of Binding Elements] +5.44 (Jaraxxus 10)

Shoulders:  [Mantle of the Groundbreaker] - Another BiS, 258 don't seem like a huge upgrade anyways

• [48580] +16.0 (Tribute 25)

Cloak:  [Cloak of Averted Crisis] - Could def use a new cloak, but most are sidegrades unless pugging something 25 man.   Guess I can gun for Ony, maybe ToC25.

• [Jaina's Radiance] +127.69 (Tribute 25)
• [47238] +110.37 (Anub 25 Hard)
• [Drape of Bitter Incantation] +91.88 (Tribute 10)
• [Drape of the Sullen Goddess] +66.78 (Freya 25 Hard)
• [Maiden's Favor] +64.59 (Anub 25)
• [Flowing Sapphiron Drape] +31.51 (Ony 25)
• [Shroud of Alteration] +23.1 (Ulduar 25)
• [Pennant Cloak] +19.02 (Sarth 2D)
• [Fluttering Sapphiron Drape] +6.09 (Ony 10)
• [Relentless Gladiator's Cloak of Salvation] +5.9 (Arena)
• [Cloak of the Dying] +2.86 (Kel'thuzad 10)

Chest:  [Sunforged Breastplate] - BiS now, no way getting those other chests

• [47486] +61.07 (Anub 25 Hard)
• [48584] +40.08 (Tribute 25)
• [47471] +17.24 (Twins 25 Hard)

Bracers:  [Sunforged Bracers] - Same as the above

• [47441] +43.18 (Jaraxxus 25 Hard)
• [47098] +40.54 (Faction Champs 25 Hard)

Gloves:  [Gloves of the Azure Prophet] - Couple of sidegradish items I guess maybe, or a trophy

• [48583] +75.63 (Tribute 25)
• [47236] +63.42 (Anub 25 Hard)
• [47961] +47.41 (Twins 10 Hard)
• [Turalyon's Gloves of Triumph] +36.18 (ToC 25)
• [Pharos Gloves] +25.04 (Algalon 25)
• [Gloves of the Lifeless Touch] +11.49 (Anub 25)
• [Turalyon's Gloves of Conquest] +1.9 (30 Triumph / 0.06)

Belts:  [Plate Girdle of Righteousness] - Could craft a sidegrade, but prob won't bother since already crafted something.  Otherwise another ToC25 thing.

• [46991] +113.31 (Northrend Beasts 25 Hard)
• [47207] +100.45 (Anub 25 Hard)
• [Belt of the Forgotten Martyr] +48.89 (Anub 25)
• [Belt of the Ice Burrower] +44.15 (Northrend Beasts 25)
• [47932] +39.84 (Jaraxxus 10 Hard)
• [47924] +9.38 (Northrend Beasts 10 Hard)
• [45554] +1.22 (6 Runed Orbs / 0.20)

Legs:  [Legplates of the Immortal Spider] - Sidegradish with the conquest, or ToC25 again

• [47087] +117.93 (Faction Champs 25 Hard)
• [48581] +110.17 (Tribute 25)
• [47479] +87.68 (Anub 25 Hard)
• [47440] +87.02 (Jaraxxus 25 Hard)
• [Turalyon's Greaves of Triumph] +53.92 (ToC 25)
• [Legguards of Concealed Hatred] +49.19 (Faction Champs 25)
• [47976] +48.14 (Anub 10 Hard)
• [47057] +21.34 (Jaraxxus 25)
• [Legwraps of the Awakening] +19.35 (Anub 25)
• [Turalyon's Greaves of Conquest] +5.89 (50 Triumph / 0.12)

Boots:  [Lightning Grounded Boots] - ToC 25 yet again

• [47099] +70.82 (Faction Champs 25 Hard)
• [47424] +69.19 (Northrend Beasts 25 Hard)
• [49238] +52.87 (Jaraxxus 10 Hard)
• [Planewalker Treads] +31.8 (Algalon 25)
• [Sabatons of the Courageous] +17.2 (Northrend Beasts 25)
• [47090] +17.2 (Faction Champs 25)
• [Treads of the False Oracle] +8.44 (Yogg 25 Hard)
• [Boots of Tortured Space] +6.64 (Jaraxxus 10)

Rings:  [Renewal of Life], [Heartmender Circle] - Def need a new ring, maybe only Ulduar/ToC 25 are worth gunning for.

• [47439] +117.74 (Jaraxxus 25 Hard)
• [Starshine Circle] +68.41 (Algalon 25)
• [Circle of the Darkmender] +66.41 (Jaraxxus 25)
• [Fire Orchid Signet] +48.77 (Freya 10 Hard)
• [Starshine Signet] +40.81 (Algalon 10)
• [Nebula Band] +24.65 (Algalon 10)
• [Ring of the Faithful Servant] +17.77 (Auriaya 25)
• [Sanity's Bond] +17.53 (Yogg 25)
• [Radiant Seal] +13.19 (Ulduar 25)
• [Signet of Manifested Pain] +11.91 (Kel'thuzad 25)
• [Seized Beauty] +5.32 (Naxx 25)
• [Etched Signet of the Kirin Tor] +4.19 (8400g)
• [Pyrelight Circle] +1.67 (Ignis 25)

Trinkets:  [44255], [Talisman of Resurgence] - Sure the Kologarn trinket is a weird choice with useless spirit and all, but it seems to be a decent choice for mana efficiency with heal spamming be equiv to 100-200mp5 depending on your cast rate.   Still prob much better for other classes, but just not completely terrible for pallies.

• [47432] +194.88 (Jaraxxus 25 Hard)
• [Solace of the Fallen] +148.16 (Jaraxxus 25)
• [Pandora's Plea] +51.58 (Mimiron 25)
• [Meteorite Crystal] +39.09 (Algalon 10)
• [Spark of Hope] +26.21 (Kologarn 10)
• [Show of Faith] +18.93 (Yogg 25 Hard)

Weapon:  [Argent Resolve] - Maybe ToC25 left to do, rest are out of reach

• [Val'anyr, Hammer of Ancient Kings] +245.8 (Ulduar 25)
• [Blade of the Unbroken Covenant] +193.84 (Tribute 25)
• [47483] +167.32 (Anub 25 Hard)
• [Relentless Gladiator's Salvation] +159.07 (Arena)
• [47962] +102.11 (Anub 10 Hard)
• [Heartcrusher] +97.66 (Tribute 10)
• [Suffering's End] +71.05 (Anub 25)
• [Constellus] +68.05 (Hodir 25 Hard)
• [Relentless Gladiator's Gavel] +67.6 (Arena)
• [Furious Gladiator's Salvation] +29.27 (Arena)
• [Aesuga, Hand of the Ardent Champion] +4.73 (Vezax 10 Hard)

Shield:  [Vigilant Ward] - BiS likely cause others are impossible

• [47085] +60.72 (Faction Champs 25 Hard)
• [47963] +29.41 (Anub 10 Hard)

Librams:  [Libram of Veracity], [Libram of Renewal] - One for high raw healing, one for mana situations.