So I created to images one dark to avoid the high lights and one normal exposed for the rest.
Then used Photomatix exposure fusion to create a composite.
Then in photoshop the area round the sun was still too bright,
so I used a light grey colour filter and blended it using darker blend mode and opacity 25%
Then I actually cloned some brightish area of sky into the bit round the sun and blended that at about 50% opacity. and a bit of spot healing to smooth the edges.
Then used a saturation level to add a little saturation and hue.
And a brighness level to adjust contrast.

Then worried that I had over done it all and not sure about the final result.