Just a little idea, for Turn undead... why doesn't it just act more like Halt Undead? The destroy undead is nice, but how often does that actually happen? My level 20 Paladin with 30 Cha and 26 Wis can't even destroy the Undead in Delara's tomb when it's on Elite...
So why not make it so that it works like Halt Undead? It would still stay true to the DnD principle, but make more sense, and likely, be used more often...