The poker room in Palm Beach County is the Palm Beach Kennel Club racetrack mid county, can search their website. Have flatscreens all around the room to update tournament statistics. Not that big (but busy) last time I went, think they might have been expanding.
The next closest is Pompano harness track (North Broward), haven't played there, but that was built new a few years ago so I expect its nice. One Seminole casino in north Broward, and then Hard Rock further south, which built a large poker room adjacent to the casino...a few other places in south Broward.