Thanks, guys! To answer some of the questions, I write most of the original material so far, but the keyboard player and the guitar players have both contributed, too, and continue to do so. When we play long gigs we include a few covers by Herbie Hancock, Roy Hargrove, Bernard Wright, and even guys like D'Angelo and Michael Jackson, but our focus is on our original compositions.
The reason I use those two guitar players is precisely because they work so well together. They're both phenomenal players, but they approach their instruments and sound palates very differently and sympathetically. The group actually started as a weekly jam session and evolved into a band very naturally since everyone works together extremely well, complementing strengths, listening intently, reacting appropriately, and all that. I'm very lucky to have a band like this.
The keyboard player is a genius, but that board he was using was a rental (his was in the shop) so he didn't know it as well as he would like. But I hear you, the Rhodes sound on the M50 isn't my favorite. The string, pad, and lead synth sounds aren't bad at all, though. Hopefully we'll be getting a demo together in the next couple months at a studio nearby, and we'll have a big selection of keyboards to use for that-- I'll probably be playing some, too.