WoW Guide: Gearing your Mage for PvP

Of all the new stuff patch 3.1 brought us, perhaps this single most significant change was the addition of dual specs. Suddenly everybody and their second cousins can tank (or think they can tank), and every Druid/Paladin/Shaman has a resto/holy spec waiting in the wings. Everybody rolls on everything in every dungeon because they're "gearing up for their second spec"...or third spec...or