Thanks for the input everybody - that was quick!
Act1onpack, I stumbled upon the Moderation Management site. At this stage I am considering trying that for 3 months. I have drawn up a plan with some hard rules based on the MM site. If I can keep to the plan for 3 months, I will try for another 3 months. And so on.
If I fail any aspect of the plan, then I am going straight to a local AA and aiming for sobriety. This is my last chance, if I don;'t do it right, then it is time to try something new - i./e. sobriety.
And drinking lots of tea.
Do I have a problem? TBH I don't know. My wife would say definitely yes - she doesn't drink, and thinks I drink too much. If you asked my friends and colleagues, some would say yes, others no. My family doesn't think it is a problem AFAIK.
Am I ready to change my life? Yes, I am ready to change whatever it takes to keep my wife, as she is the best thing that ever happened to me. Am I ready to quit drinking? Yes, I think I am, but as a last resort.
But the thought of never drinking again is certainly not my favoured option at this stage.