Break Out by Nina Croft
My rating: 3 of 5 stars
Summary: The year is 3048, Earth is no longer habitable, and man has fled to the stars where they've discovered the secret of immortality—Meridian. Unfortunately, the radioactive mineral is exorbitantly expensive and only available to a select few. A new class comprised of the super rich and immortal soon evolves. The Collective, as they're called, rule the universe.