That is awesome!! Very clever.
"Hello, little one. You and I have a great deal to do..." and then it goes into a more intense music segment w/ the guitar sound, with a spellcasting. When the music track settles down again, he comes back with "So, God-child, you have escaped." ROFL
If you played this for someone who never played BG2, I think they'd get an interesting image of a villanous character. Have you submitted it to any home-recording/remix sites? I can get you a link if you don't know what I mean. I'd just like to see someone's reaction who doesn't know the source of the voice samples.