Flutterby™! : Recording software?

On the car ride this last weekend we ended up re-reading enough that I've bought a microphone and am finally set up to record some of those short stories I asked about on the laptop so I can burn 'em to CD or MP3 them. In the process of playing with various recording options under Linux I realized that recording music is not the same as recording prose. I can sit down and write something that does what I want, lets me hit a key every so often to checkpoint or return to the previous checkpoint, in a very short time, but as I start to think about additional features I realize that if someone else has already started on such a project I'd like to build on their work. Anyone know of audio recording systems set up for prose that'd run on my Linux box?