I was in London yesturday and visited the 'Mulitpled' Contemporary Editions Fair held at Christies in South Kensington. You can just about see my framed prints inside the building from the street (Old Brompton Road).
If you get the chance head down there today as its the last day. There are some great galleries there with some fine prints on show. Further details can be found at http://www.multipliedartfair.com/