If you’re an airman at Hurlburt Field working out at the base gym and think you’re hallucinating because Lebron James or Dwyane Wade walked by — you’re not. The U.S. Dream Team Miami Heat will hold their weeklong training camp at Hurlburt Field and Eglin Air Force Base starting Sept. 28. Of course, the Heat dominated headlines this summer when James announced on a national television he planned to take his talents to South Beach instead of re-signing with the Cleveland Cavaliers. For good measure, Chris Bosh joined James and Wade to form what some are calling the best team…