Discipline PVP Priest

So Iíve been 80 for 2 weeks now, I am gearing my priest for PVP. In survival I do pretty well. But I am always looking for tips and advice.

Later today I will be getting Inner Fire Glyph.

How is my build?
http://www.wowarmory.com/character-s...cn=Dirtypriest

And what attacks should I do and in what order and why?

Thanks guys.

Myrkk