This is my current UI that I use for tanking on my druid. It was inspired by Ryas' latest work.
I have everything but my forms, heals, and a few various abilitys keybound / hidden via Bongos.
Major addons.
ag_UnitFrames
FuBar
DoTimer (Cooldown & DoT bars that are seen under the unit frames)
Recount
Grid
Omen2
Prat 2.0
Bongos
SimpleMinimap
Big Wigs