There's an auction going on right now via ebay. The package is incredible. It includes: a pair of passes to attend a sound check; a meet-and-greet with Sir Paul; two tickets to one of his concerts (select dates in July & August); an official photo (sent to the winner after the show) and two round-trip Delta One Business/First-Class tickets within the Continental U.S. The auction runs through 8am PT on June 23.
You can check it out here.
As of this writing, the price was only $15,500.