I am glad Stiggy responded before I did - there are millions of combinations, so I do not want to run the risk of discussing them all...
So Chilli pack has been decided (I was going to suggest that anyway)
Visibility pack will give you auto wipers, auto dimming mirror, auto headlights (not sure that is the best option ever invented...) and heated front screen. This lingers at the top of my list
Buttons on steering wheel are great.
Anything beyond those three are down to your own budget/choice/taste
P.S. I really do not care what colour my indicators are - I spend most of my time looking out from the inside... Will agree that it does make the entire car look different