recording audio questions

(Sorry for crossposting--I originally put this in the BGIIEE Modding forum by mistake.) So I want to record some audio for an NPC I'm building. I've never done this before, and I know very little about recording. I mean, I've played around with Audacity a little bit and that's it. Do people have any recommendations for how to begin? Better yet, are there game-specific tutorials? For the record, once I have decent sounds I can get them in the the NPC mod without a problem. It's the recording part that I am unfamiliar with. Thanks for any help or suggestions.