Definitey check out George Duke and Richard Tee. Both guys were EVERYWHERE in the 70's/80's and both play with a beautiful tasty groove. Richard is on Tom Scott's New York Connection album and tears it up. George Duke is one of the true fathers of modern "smooth jazz", and always sounds good and funky - not too "smooth". He produces as much as he plays keys. I like Najee's "Songs in the Key of Life" recording that Duke produced/played on.
(these guys really are everywhere and I'm not even sure these examples are the best place to start - it's just what I have off the top of my head)
Jan Hammer is another 70's/80's guy if you're looking for sick chops, and not so much "funky". He and Brecker clearly listened to each other and shared concepts. Check out some his fusion stuff with Jeff Beck.