I've got an SR-16. It's great operationally, but the presets are a not all that great and programming it is a bitch. Interfacing to PC with it is impossible, usually requiring a manual reset to recover it.
To further the OP's question, is there a software version of what the SR16 does?
ie. a few basic patterns that can be switched between via foot pedal, utilising some fills.
I've heard that Ez Drummer solo might do this, does anyone have experience of that?