Welcome aboard Andrew, i'm still a relative newbie as well (joined about a year ago when i bought my S Type) and so far haven't been to any social events of any form.
When i had my previous "big" car, we had a monthly (Saturday afternoon) meet in a centrally located pub, usually had a meal there and an afternoon of chat (mostly about the cars) and being social - i'd be up for attending something along those lines in the east of England/East Anglia/east Midlands area if there's enough people to make it worthwhile.