At the moment my course list isn't that long outside of Southern California. But, the first one that comes to mind in the Palm Springs area is the Stadium Course at PGA West (which some of you have mentioned). You can get in trouble real quick out there, especially if you play around when they are hosting qualifiers or other tournaments. Out in the San Diego area, obviously Torrey Pines can eat you up and spit you out real quick. Then there's also Mt. Woodson in North County San Diego. It has some crazy rock formations, and elevation changes that you have to really watch out for.