Monday 2 July 2007 3.47pm
Not strictly speaking self-defence, but you might want to consider the taekwondo club I go to near the Barbican. It's done wonders for my confidence, and in terms of self-defence it has improved my fitness (for running away!) and I'm sure I'd be able to handle myself far better in a crisis now (for example, we do exercices where we are hit or kicked, and hit or kick, with pads, and it gets you over the shock of unexpected contact so you can react calmly).
More info here: http://www.taekwondo-london.co.uk/