We usually have one once a month, and ooh dear sorry :P if you looked up Cosplay Directory U.K you'll find it in the events there ^.^ and you'll be notified of all the next meets too!!
May 2011 MCM expo
Friday- Takeshi Morinozuka- Ouran High School Host Club
Saturday - Rikuo Nura (Yokai form) - Nurarihyon no mago
Sunday - Sora - Kingdom Hearts II