I have the 60s 70s board. I think the Roads sounds and such would be great for R&B. Seeing as how the Roland units don't really have very good electric piano sounds. I don't have the vintage synthe board, but I've downloaded an entire floppy disk from the internet full of synthe sounds. I think you'd be better off with the 70s board and downloading synthe patches. Good synthe patches are fairly easy to create from the onboard sounds; at least I think so.
OTOH, the hiphop board might be a good choice as well. It's got a few electric piano and organ sounds, plus loops, hits, basses, vocal effects, etc.
[This message has been edited by FAEbGBD (edited 09-12-2001).]