I headed up to Lake Gairdner with the old boy again last week, this year we merely played spectators due to his streamliner being mid-modification again. While I missed being "part of the action", I still thoroughly enjoyed the short time I spent on and around the salt. There is never a shortage of things to see or people to talk to, this is the beauty of the salt: the never ending demonstrations of good ol' ingenuity and the builder is right there, usually willing to have a chat and talk you through their pride and joy. If you are even slightly interested in cars, bikes, speed or just the apparent absurdity of going as fast as possible in whatever you have handy, and you have the time to head out there, even if only for a day (as was my case this year: 14 hours travel for 25hours up there) I can't recommend it highly enough!
You can see more of my photos, some accompanied by a little information, in my Flickr set here
Update: User.One's comment reminded me that I'd been remiss in including the DLRA link for further information and results.