Check out:

http://talent.mmo-champion.com/?priest=&version=9658

Mental Agility - Reduces 10% Manacost of instant spells (only 3 points now, down from 5)
Soul Warding - Shield Cooldown -4 secs and -30% mana costs for shield
Enlightment - +6% spirt and +6% spell haste for 3 points (5%/5% and 5 points before)
Impr. Flash Heal - -15% mana cost and 10% crit bonus if target is at or below 50% health (yay)
Renewed Hope - +4% spell crit if target afflicted by weakened soul (shield) and 100% chance to reduce all dmg taken by all raid by 3% for 20s after casting shield (wtf! yay!)
Rapture - When shield is absorbed or dispelled you gain 2.5% of your mana and your shield target gains either 2% mana, 8 rage, 16 energy or 32 runig power (awesome)

Oh, so much joy to shielding. I love 3.1 and hope, this changes go live