This should be of use finding spells:
http://www.imarvintpa.com/dndLive/FindSpell.phpThose 2 spells are in PHB2 or Complete Mage.
Also, I gotta say that while CHA to Saves is nice, you'll only have what, a +4 to +8 at most levels you play in? You're better off without levels in Paladin. In Gestalt or when you have a MUCH higher Charisma, that's not the case, but in a normal game, full casting is much better.
From the 1 7th level spell, I'm taking you're starting at level 14, so a likely CHA is 18 + 3 (Level) + 6 (Item) = 27. That's only a +8 Mod.
A level in
Prestige Bard would get you Sirine's Grace (Bard 4), Inner Beauty (Bard 4), Snowsong (Bard 6) and Nixie's Grace (Bard 6) among the other great bard spells, and those alone are worth +10 CHA, +14 DEX, +2 WIS, +13 Deflection to AC, +4 Morale to Attack, Fast Healing 1, +1d6 Cold Damage with Melee attacks, DR 5/Cold Iron. I say go with this PrC and keep full casting otherwise. If you need the BAB, use spells and items.