Thanks for all the kind messages.
Just to give a quick timescale of my experience:
December 2010 - Mentioned bariatric surgery to my GP, who looked into it
20th Jan 2011 - First appointment at L&D
11th May - Appointments to see Bariatric nurse, psychologist and dietitian - placed on milk diet for 5 weeks
17th June - Taken off milk diet and put on re-feed diet. Asked which consultant I would like to see, I opted for the one with the shortest waiting list, Mr Barreca.
8th August - Met Mr Barreca who talked me through the options and I choose the bypass. Signed relevant paperwork for elective surgery
20th October - Pre-operative assesment and collected self-injector and tablets to take day before surgery
Tomorrow is the day...
Hope that is helpful for those who wanted to know, quite happy to answer any questions