Yeah I do the same thing, as in writting everything in Midi. My friends make fun of me for it, but it's an easy way to put songs together and save them. Rather than storing them on a recorder or as a wav. file, which takes up too much space. Especially when you come up with just random ideas. As for recording a live band, unless the band is down with it. It's usually doesn't work, probably because re-writting the entire song in midi before recording is extremely time consuming.