My flatmate Oli runs a recording studio in North London. I went there for the first time a couple of weeks ago. It's amazing! It's called Dreamtrak Studios and it's in Finsbury Park. http://www.myspace.com/dreamtrakstudios
He has been recording live Dreamtrak Sessions there with proper mixed audio. We did this - http://vimeo.com/4154329
Anyway, I was just saying in case anyone was looking for somewhere good to record in North London. Dreamtrak FTW!