I'm sort of divided on the spellcasting thing; I see your point though. Also, Battle Blessing is kind of a feat tax for this character if he does any serious spellcasting.

Anyway, forgot about [Divine] feats; that's a pretty good call. Yeah, 1/day/level sounds good, just kind of roll that into the Devotions section, something like "In addition, a Paladin may use feats or class features that require expending uses of Turning or Rebuking Undead a number of times per day equal to his level plus his Charisma modifier. He may also qualify for feats and prestige classes as if he had the Turn or Rebuke Undead features, though he cannot actually Turn or Rebuke the Undead."