Leftfield's show at the Brixton Academy next saturday (April, 21st) will be live on the internet:
http://www.reslive.com/event/623/Leftfield-and-friends
You have to buy a ticket, but it's for charity (Warchild)!
"Icons of British dance music Leftfield will curate a stellar line-up of artists on 21st April 2012, all in aid of War Child.
Leftfield’s first show of the year with a line-up of friends and special guests will provide a spectacular show for fans and much needed funds for War Child."