I bought 2 Damien Lovegrove DVD's at the 'focus' show this year. And I used to own the natrual light one.
IMO, They are very good DVD's. Remember, once you've watched them 2 or 3 times, you can then sell them on for a bit less. So in effect, meaning you've paid £5 or so to watch it.
I'm a fan of them.