Still can't add to the calendar, so here's some dates I know of
Gaydon Heritage Motor Museum
Sunday 25th March
Japfest
Saturday 19th May 2007
http://www.japfest.co.uk/
JapShow
Sunday 24th June 2007
http://www.japshow.co.uk/
The Second Annual Beat Meet In The Park
Sunday 23rd September 2007
Kingsbury Water Park (nr jn9 of the M42)
http://wh1teleopard.tripod.com/abmitp/
JapShow Finale
Sunday 7th October 2007
http://www.japshow.co.uk/