Colin Hart was the road manager for Deep Purple through most of their career, including the superstar days.  He also did the same duties for Rainbow in between Purple stints.  Can you imagine the stories this guy has?  If you're a fan of either or, like me, read all about it soon in "A Hart Life" coming soon from Wymer Publishing.  I'm guessing it will be a great read for any classic rocker, especially if you consider the colorful personalities that made up both bands.