For those in the area, I highly recommend going to a Defensive Pistol shoot at Rockford Sportsman Club in Rockford, Mi. I've been interested in IDPA for a while, but, like you, I'm a total newb and didn't wan the pure competition part of it. At the defensive pistol shoots they generally follow most IDPA rules, but losely, and although Steve (the guy who runs it) keeps times, penalties, etc. and shares the scores, the emphasis is on developing your skills in defensive situations, not the competition of getting the best score (lowest time).
Matter of fact, the RO gave me several great pointers throughout the morning. It was really helpful.