First a word about myself. You might remember me as the beginner who inquired about "honky-tonk" sound last week. I am much more drawn to ragtime than say classical music and in my other life I'm a pretty serious country-blues guitar fan. Does this tell you anything about the type of ear I have (unsophisticated, but demanding?

)? Gosh I hope I don't get kicked out of this place after telling all that!
My question: Are there any digital pianos which would be excellent with my ragtime tastes/aspirations? I suppose I'm asking whether there is there a portable unit which offers suitable voices/features?
I know I'm a long way off from being able to really play ragtime, but in the meantime it would be nice if some of my banging away at the keys produced the right nuances. Hope you understand this.
I really have little knowledge about pianos, digital or otherwise--salesperson recommended Yamaha P-120. I contacted a local dealer who has a Yamaha CLP-154 and a Roland KR-500 for rent. I don't know anything about these yet. In the meantime I can play an acoustic at the school where I teach.
Thanks,
BillH