I bought the Privia PX-5S a few months ago, and I'm really loving it. Sorry for the double post, I meant to post in this forum but also posted this in the general casio forum. Anyway: Lately, I have become interested in concentrating on the Hammond organ sound - I've been inspired by Jimmy Smith's "Root Down" album. I think I can get some decent organ sounds using the various downloads I have found on the site. But having never played an actual Hammond before (or any organ, for that matter), I'm not sure if the PX-5S's keybed is right for this style of music - I'm talking about uptempo, funky organ, not funeral home organ. I'm thinking about getting a Hammond XK1C because it has waterfall keys and may be better suited for that type of playing - not to replace the PX-5S, but as a second, dedicated module. But I'm wondering if I'm just wasting my money. Is it that difficult to play those types of fast runs on the PX-5S, or is the Casio really going to limit me? Keep in mind that I'm a relative beginner on piano and organ.