Wow. Okay, so this probably doesn't mean anything to anybody, but this weekend, on a panel concerning "Dialog," I made the comment about studying stand-up comedians for style, pacing, etc. This is because each comedian has their own distinct voice, and to make character development though dialog your character's voice must come through in that dialog. Either that or all your characters sound like they're auditioning for a Noel Coward play.
So I'm listening to the podcast "Writing Excuses, Episode 35: Voice, Tone and Style" (10-06-08) and they make the same argument. Even using one of the comedians I used. (insert Twilight Zone Theme here)