I use the super trend indicator and moving averages.
I have also used ADX in the past and Malcolm Pryor has some good strategies using ADX & moving averages in his financial spread betting handbook. You can read my review of the financial spread betting handbook
in my books section or by clicking the link above.
I hope this answers your question. If you have any more feel free to ask them.
Oh and welcome to the forum.
May the markets be with you!
The Spread betting beginner