Leif: I forgot to mention this: Even though Bevin is now a beguiler, his spellcasting will still be based off of Intelligence, not Charisma. (So he's a variant.)
Remember, he had Immortal aid in upgrading his magic, so it's understandable that he's a little unique. I'm not too worried about him being overpowered by knowing the cantrips. If he suddenly starts dominating all the action with his 4 cantrips/day, then I might reconsider.
You should post the new Bevin in the X5: Temple of Death - RG, not in the old X4 thread.
I don't know why but right now you mostly have a beguiler 8, in the old thread. I guess it's a work in progress. He is not a beguiler 8 and never was. He's a (variant) beguiler 9. Don't forget, a beguiler in light armor has no ASF%.