Back in early '01 when I was stationed there for training while in the Air Force... I played at Jim Bob's poolhall. It was a pretty cool place. I'm not sure about action though. Back then I didn't even know there was really gambling in pool.
Jim Bob's Pool Hall
(228) 896-9193
197 Tegarden Rd, Gulfport, MS 39507
Hopefully it's still there after Katrina wiped everything out.