I recently read in one of the gaming magazines that did a review of the new South Park game and an interview with SP creators Matt Stone and Trey Parker that the character audio would be significantly different in the game's Nintendo 64 version and the PC version.
In the interview both Matt and Trey said unfortunately because of the memory restrictions that the N64 cartridge had they weren't able to get all of the character audio into the N64 version that they wanted to but were able to into the PC version because the CD's for PCs have a lot more memory available then the N64 cartridge.
I don't know if this is true or not, We'll soon find on when the PC version is released sometime in January.
*Rick Schwarz*