If you download addons from curse I'd really recommend using the clinet. I understand you can get a bit supiouse toward it but it really does help alot, espeially now that the game is new and addons get new uppdates every other day.
Here's a list of a couple of addons I've found useful:
AutoDismountVery nice addon that automaticlly dismounts you when you try to use an abbility. Has some compability issues with some alter spam mods however.
AlertFilterWith this mod you can filter out any message that splashes on the screen, like "Abbility not ready" and the like. Makes for a cleaner UI and less unnessery spam.
ClockSimply puts a clock on yout screen. Helpful for remember the time. =p
[DieBuffsDieRemoves the clutter of buffs on the standrad unit framer. If you're not too concerned with what buffs and debuffs your party memebers has you can get this for a cleaner UI.
MetahudUnifFramesWorks as a standard hud. Putting your and your targets health right next to you character so you can have a better overview during in combat.
Mouse Button targeting fixThis is one of the most useful addons and something everyone should get. This makes it alot easier ot target other players in pvp. By default WAR targets the player you mouse over when the mousebutton_up event triggers, this mod will change it to activate on mousebutton_down instead.
Scenario Join All ButtonName explains it all. Makes you able to sing up too all or a set couple of scenarios in one click.
Whiney Spell TimerAn addon useful for keeping track of mutliple dot and hot timers.
