Welcome to the club. Most ranges have an IDPA and USPSA nights. Check here http://www.idpa.com/ and here http://www.uspsa.com/ for rules and regs.
The best thing to do is to watch a match and ask questions from the guys who have obviously been doing it a long time. You can easily spot them: They don't often miss.
IDPA has a concealement garment requirement, but I've seen it not enforced on the local level a couple of times. Basicly, you have to have the gun holstered, put your arms straight out to the side, and the gun and holster should not be seen. Plus, and this one's important, Hi-cap mags must be only loaded to ten rounds. The one you first put into your gun when you step up to the line can have 11 (ten max +1 in chamber), but extras can only have ten. Make sure you have at least 3 mags.
Oh, and don't be too good to help paste targets for other guys.
The best thing to do is to watch a match and ask questions from the guys who have obviously been doing it a long time. You can easily spot them: They don't often miss.
IDPA has a concealement garment requirement, but I've seen it not enforced on the local level a couple of times. Basicly, you have to have the gun holstered, put your arms straight out to the side, and the gun and holster should not be seen. Plus, and this one's important, Hi-cap mags must be only loaded to ten rounds. The one you first put into your gun when you step up to the line can have 11 (ten max +1 in chamber), but extras can only have ten. Make sure you have at least 3 mags.
Oh, and don't be too good to help paste targets for other guys.