Thanks for the recommendations! I got an RC-20XL today, second-hand but totally unused (better than mint) at a great price. Plugged in and had backing tracks going in less than a minute. What a blast! This is so needed for the jazz tunes and improv stuff I am working on now. How did I go so long without a tool like this? Maybe it's just the "newness" effect, but man, I can see myself wearing this freak'in thing out (or maybe the other way around!). Thanks again guys!