The Grateful Dead has dipped into its vaults yet again for an ambitious new package -- "Spring 1990," which sports six performances from the group's tour that year, including shows in Hamilton, Ontario, Landover, Maryland, Hartford, Connecticut, Albany and Uniondale, New York, and Atlanta. The box set also comes with a 60-page hardcover book, a tour laminate, a 25th anniversary tour program, ticket stubs and backstage passes from the shows, and other memorabilia. The collection will be sold via Deadnet.com.