There is an endless amount of addons available for World of Warcraft, and while I encourage you to experiment with your own interface setups, I wanted to write an overview of some addons I use as a starting point. Feedback is appreciated, you can tweet @Daemagor or leave a comment below.
I use WeakAuras to give me additional visual cues for spell cooldowns and durations.
WeakAuras makes it easy to export and import auras. Type /wa into your chat, click on the New button, then on the Import button, and paste any of the import strings from the links below into the box.
This HUD tracks cooldown and duration information for many Mistweaver spells. From the author's page:
Above Main HUD
Teachings of the Monastery (Middle)
Lifecycles Vivify (Left)
Lifecycles Enveloping Mists (Right)
Icons Main HUD
Thunder Focus Tea
Sheilun's Gift (=4 Saturated, >=6 Glow)
Essence Font Tracker (This is only available in a group situation where it is able to track players so you can judge the effectiveness of EF)
Focused Thunder Stacks
Rising Thunder (Tracking Rising Sun Kick)
Life Cocoon (Left)
Refreshing Jade Wind/Invoke Chi-ji/Jade Serpent Statue (Right)
Chi Burst/Zen Pulse/ Mistwalk (Right)
This bar tracks several ability cooldowns not tracked by the HUD above. From the author's page, the bar tracks the following abilities:
Ring of Peace
Song of Chi-ji
The Perfectly Preserved Cake tracker shows how many plays are in range of you and will gain the shield, as well as the cooldown of the trinket. You can get the import code for the Cake tracker here.
The ornate spell trackers show the duration of Invoke Chi'ji, Blessing of Yu'lon, and Mana Tea. These aren't entirely required as they're tracked using the other auras above, but they add a bit of extra thematic flare to your UI if you like that sort of thing.
June 15, 2017 - -Reworded AoE tips, tier, and talents.
June 11, 2017 - Reviewed guide for patch 7.2.5. Updated BiS lists, stat weights, legendary items, and talent builds.
April 27, 2017 - Drape of Shame spreadsheet.
April 20, 2017 - Added the addons page with WeakAura information.
April 2, 2017 - Added Tomb of Sargeras gear and new trinket simulations to the stats and gearing page; updated the empowered artifact traits paths.
March 28. 2017 - Added Pawn Import Codes for stat weights.
March 27, 2017 - Tweaked "Top legendaries" lists.
March 27, 2017 - Reviewed and updated the guide for patch 7.2, including talent and legendary changes, and empowered artifact paths.
February 25, 2017 - Updated BiS gear list with minor changes to waist, boots, and chest, along with adding legendary items to the list itself, and major updates to the trinket section.
January 20, 2017 - Fixed "Breakdown by Boss" counts for BiS list.