I'd like to have a simple drum machine to use to play along to w/o needing to use a computer (I've got some decent software but don't enjoy using a laptop while playing guitar). No interested in the beat buddy or even the non-insane priced digitech unit as I use amp gain so a pedal isn't practical for me. I've seen some of the very advanced models by alexis and boss go for very little used but have a feeling it'd be too much for me, i dont need, want, or would even be willing to invest the time necessary to program beats for a song. I'd just like to pick a cool beat and tempo and go. Anyone using or aware of a unit like this?