I haven't gotten the mike for the iPod yet, but I installed the music recording program, and it's already an improvement over the built-in memo recorder. With the microphone and a more strategic placement in the room, I think I can eventually get a decent recording.
I gave it a shot our last session and managed to get a couple tracks down that don't sound too bad. I've uploaded them to SoundClick -- Viper and a better version than the first take I had up of Keep On Truckin' Mama, and you can hear them there, or on the player down the page.
Well. Maybe not "rock" so much as, um ... something ...