Happen to have a spare $150K around? That will at least get you an opening bid on Luke's hero lightsaber prop from ANH and ESB.
There are pages and pages of awesome Hollywood props up for sale, including Indy's Fedora from Temple of Doom, Arnold's jacket from T2, and Christian Bale's cowl from Batman Begins. Lots of great stuff to drool over.
Man, if only I were rich.....