Cool,
I'm new to this scene also. I live right beside J17 of the M25.
We have the Chilterns on our doorstep and I'm sure there are plenty of 'beginners' lanes to try - I just need to find out where.
I was also hoping there might be some more organised off-road activity so I could learn from some more experienced off-roaders.
If I hear of anything, I'll let you know.