Pack them jokes into your laugh pistols and get ready for the comedy shootout of the year. On July 6, local comedians will converge at Laff's Comedy Club to take part in the Great Southwestern Laff Off Competition. Sign up starts at 6 p.m. Over the course of the evening 12 semi-finalists will be chosen. Then, on each of four consecutive Sundays, three of these semi-finalists will put up the best five minutes of pure comedy they can muster. The winner from each evening will then compete in a final comedic blow-out on August 10. The overall champion will be booked in three comedy clubs, one in Arizona, one in Texas and one in New Mexico, as an honest-to-god professional comedian with all the riches and fame that entails. Anyone funny can take part. The only requirements are that you can't have been paid for more than eight comedy performances within one calendar year and all your material has to be original. For complete details, call Laff's at 296-5653.