Am I nuts or could this possibly be one of the most powerful builds I've ever seen?

[RigaMortus]

AFAIK, Divine Metamagic was errated. IIRC, the character needs the feat you want to use with Divine Metamagic, Persistent Spell in this case. A little drawback, at least.
But still, a powerful PC build...

Did not know that. Thanks for the update... At any rate, all that does is delay the build some. Replace Quicken or Maximize w/ the Permanent Metamagic, and you're fine (plus shift the feats around a bit).