I third the Synergy, Second the band called FM and for newer groups that are out there, try Ozric Tentacles (Prog Rock meets Synth). You may also appreciate some Mike Oldfield and another interesting band from the seventies and one of my all time favorites was Happy the Man. The keyboardist is amazing and you can find his solo stuff on line. Just search for Kit Watkins.
Cheers,
Cheers,