The other place to check out is downtown La Mesa - should start up in another month or so. It's a little more organized - I was down there visiting my folks last year. Very cool (still can't figure out why I moved up to Seattle..... oh well....).
I'm planning on driving my Bronco down at Xmas and visiting for a couple of weeks. That way I can pick up my AutoFab drop-center fiberglass hood (won't have to pay for shipping!) and get out to Glamis or Ocotillo and run some dunes.