I'm aware of things like the Sonuus converter which track your guitars sound to then convert it to MIDI, although I'm not sure if this will work for electric acoustic. I'd rather not go out and spend a ton on complex audio equipment however, so I'm also wondering if there was some sort of software I could install on my computer to allow it to act as a guitar to MIDI converter. I have a Macbook Pro with OS X 10.6 and wine ports installed to allow for windows software as needed. I also have Logic Pro installed.