Anyone have experience with Ductless Mini Split ACs?

view full story

http://hardforum.com – My Home theater room is Approximately 14' X 18', or about 252 sq ft. It has 9 foot ceilings and is in the basement. The room has 7 seats and it does have one AC/Heater vent in the ceiling and one return. 80% of the time there are only the 4 of us, or the kids with their friends watching a movie and the temperature is still bearable by the end of the movie. However if family is over and we have all 7 seats filled it gets pretty toasty in there, even with the whole home AC on. I've been trying to come up with a way to keep it cooler in there and not spend a ton more money on the problem (Hardware)