The first Los Angeles Code Camp is just around the corner. It will be held over the weekend on October 25 and 26 at the University of Southern California (USC). Code Camps are great because (1) typically the presenters are developers in the area, not corporate speakers who don't make their living releasing code to customers from far away places and (2) it's free! This of multiple users group meeting all weekend long with topics ranging from WPF to Agile to SQL Server to Silverlight to Java. I'll have to admit that the Java and Open Source community isn't as well represented as other Code Camps across the nation, but in the code camps I've attended, they is definitely interest, there just needs to be people who submit topics for a session
In case you haven't checked you calendar, this event also takes place the weekend before the PDC. So if you didn't sign up for any of the pre-conference events but your in town, you should can definitely check out this event. USC is not that far from the Los Angeles Convention Center, either.
Check it out.