We have a couple of cajun jams a month here in London - sometimes three in one month.
Firstly we play at a great old pub near London Bridge called The George - every third monday of the month except December.
We also jam at Cecil Sharp House in Camden, north London - 1st Friday of the month - major cajun bands in the main hall and us 'would-be' cajun musicians playing in the bar.
Also just started a Sunday afternoon jam in a pub in North London - not sure how this will progress, but put the above in your diary and look forward to seeing you then.
I've been too busy to stop by this board and I've been missing it. Chuck, I'll be living in Paris as of January 2008, running "Cajun Fridays" out of a restaurant there--cooking class, dinner, and dance with live music. I've got some other ideas, too. E-mail me personally before you head off on your trip and I'll invite you out to something fun!