I have not posted for sometime but on reading some of the posts I think the the following information might be useful:-

I transitioned at work on the 29th Feb 2008 and my first visit to the Gender Clinic at Charring Cross Hospital was in May 2008 to see psychiatrist Dr Lorimer for an hour. My second was in September 2008 to see Dr Davies which resulted in me being prescribed Hormone therapy treatment.
I then went to see Lorimer and Davies about every 4 months in turn until November 2009 and which point Davies recommented me for surgery and subsequently received an appointment to see Mr Bellringer on the 1st March 2010 (2 years after transitioning).
The appointment went well and a surgery date was fixed for 15th April 2010. Unfortunately for unknown reasons the surgery was cancelled on that day and I had to return home. I now have an appointment to see Mr Bellringer on the 28th June for another surgery date most likely in August.
At the beginning of March 2010 I applied and was granted my Gender Recognition Certificate and I am now legally a woman.
Note
GR Surgery will only be considered by the NHS until after 2 years from your proven transition date

Hope the information is useful enen though it has been considerably condensed.

Katie