If I take the Wizard alternate class feature Spontaneous Divination (Complete Champion), can I convert prepared spells for ANY Divination spell, or just Wizard/Sorcerer spells? Could I use this ACF to, for example, allow a Wizard to cast Divine Insight from the Spell Compendium which is a 2nd level Cleric, 1st level Paladin spell of the Divination school? And which spell level would it be, 1st or 2nd?
Edit: hell, could you combine the above spell with
Guidance of the Avatar?