My buddy Jack Ness uses a korg module and a yamaha module. With a roland keyboard of some kind. He likes the Roland keyboard piano sound the best. He has drums sequenced on cakewalk and some bass and strings. Sometimes he does like Dave and plays left handed bass. He mixes everything up and seems to do it real fast. This is the system he has used for a while. He wears out keyboards he tells me playing 5 nights a week plus during the day. He said they just don't hold up. With this system, I remember teo years ago in our park gig he brought a Casio along for his keyboard. He got the same sound. He plays acoustic piano too.