In reply to John Alcock:
I'm another who met Ian through the Bristol scene, sometime around 2003. What people have said so far rings true - enthusiastic, helpful and just a good bloke.
Lasting advice from him for me was that he pointed me up my first E1, and my first E3. I also remember something he said to me after some friends and I had had a bit of an epic of a day: "These are really the formative years of your life, and you appear to be doing rather well!".
A sad loss, and condolences to his family. Unfortunately, being in another country, I don't think I'll be able to make the drinks at the end of the month, so please raise a glass in my absence.