I don't know about local competitions, Don, but usually if you ask teachers they have a pretty good idea. I'm a grappler, but I go to tkd and karate dojos and ask for information that they have on competitions and that kind of stuff.
Doing some scouting is usually important, but if you're crazy you can just dive right in.
Sig by Toxic
Barnett - Toquinho -Werdum - "Nurmie"
Z. Gurgel - Morango - Rocha - Tiequan