Hm, my computer has a built in mic, and doesn't have anywhere to plug in an external one. So I'm not sure how I'd go about doing that. But, so long as no one is home and the windows are closed, there isn't much, if any, background noise in my bedroom. Even less in my basement, although there might be a slight echo from there.
In any case, I'll try to do a couple of line tests for Jordan and Aldrea, and see how they sound.