Well, after staying up to the wee hours updating information for this year's amateur yard haunts, I got up today and di the same for Professional Haunts.
If you are already planning your Halloween season (as I know some of you are, judging by the traffic statistics), you can check out a list of Los Angeles-area pro haunts here.
Just one note: it pays to get the early jump on this stuff. Many of these pro attraction open the last week in September, when they have discount prices - and far thinner crowds. Go early - you'll save a few bucks and you won't have to wait so long in line.