Hello guys, thought I'd register to post my suggestion for a meet-up.
A perfect venue for a meet would be Bletchley park (Just north of London), with the national museum of computing.
http://www.bletchleypark.org.uk/
http://en.wikipedia.org/wiki/Bletchley_park
http://www.tnmoc.org/galleries.aspx
I've visited a couple of times, and its really well put together. It also has a running Colossus rebuild - http://news.bbc.co.uk/1/hi/technology/7466174.stm
If you've any interest in history of cryptography and early computers, then its worth a visit. I'm sure that if we ask they could put on some specialist tours.
Any thoughts?