Last night in raid, the Thunderforged Soulblade of the Breaking Storm dropped. My wife's mage is the designated disenchanter and no one could use it on the healing side. But after looking at it, even though it has spirit on it and she has no off-hand item (She'd end up buying an inscription fan), I think it is worth her switching to it. She currently has the LFR Dinomancer's Spiritbinding Spire. It's a 2000 spell power gain to switch. And she would, of course, reforge out what spirit she could.
I would appreciate a mage's opinion. She is Grayce on Feathermoon and is currently playing frost.