Sincere apologies then & deleted my unjustified comment - I honestly thought he already had the best of everything that's currently available.

Yes Bernie, the SX900 would make for a nice upgrade then and should you wish later, Groovyband Live! will still work with it. I'd recommend that they create a specific version that would recognize all the voices from the SX900 & Genos including the Revo drums. Then update all on-board styles to suit. (I think they most prob. are working on something similar already as they have already included all the extra effects from these units even though my S770 can't play it))