This a great link I would suggest all pallys take a looksy at.
Some of the Link Contents:
Synopsis/highlights/general themes
Current confirmed bugs
Game mechanics changes
New spells
Changes to old spells/mechanics
New/changed talents
Other Paladin-related mechanics/gameplay information
http://elitistjerks.com/f31/t28560-p...es_discussion/
Some things to note:
Heals
Flash of Light costs 8% of base mana for ranks through level 65, and 7% of base mana for later ranks. It has a 100% spellpower coefficient.
Holy Light costs 34% of base mana for ranks through level 65, and 29% of base mana for later ranks. It has a 166% spellpower coefficient.
Lay on Hands no longer drains all mana, cooldown reduced to 20 minutes[/color] (See also changes to Improved Lay on Hands talent).
The link has the breakdown on the new coeffecients as well.