The Arena Player's Must Have Addons

So this past week I have been doing a large amount of PVP on my mage, in particular arenas. So I thought I would go through what I see as the must haves for arenas. One of the biggest parts of PVP addons is the importance of the presentation of information in a quick, easy to recognize format which will make your reaction time better. I thought I would compile a list of addons which I see as doing this. This is in no way shape or form all encompassing, it is just my personal recommendations.