One of the best car/boat shows and auctions is Keels and Wheels at the Yacht Club in Seabrook, TX. My brother sold his 61 Rolls Silver Cloud II, 58 Packard Hawk, and 69 Mach 1 428 there yesterday.
My back was killing me from landscaping my backyard the day before -- so I took a little $100 "Throw-down" range-finder camera as opposed to lugging the good stuff.