Sugar,
While you’re here I think you have 3 options…
Free parties, club nights run by free party people and commercial events.
Unless you’re feeling particularly brave and have friends to bring with you, I wouldn’t advise a free/squat party in London because despite everyone’s best efforts they can sometimes be a bit less than friendly. Commercial events will try their damned to extract from you every penny you own, so I’d avoid them as well. While club nights run by free party people can be huge amounts of fun to the uninitiated, although with summer coming you might also think of hiring a cheap looking car and driving into the country side…
Tracking events down is easy, sign up to the site’s mail list (bacchus), also check the calendar and follow instructions…
http://www.partyvibe.com/mailman/listinfo.cgi/bacchus
http://www.partyvibe.com/vbulletin/calendar.php
