Grid is most likely the unit frames
Bartender with button facade for the skin of the buttons I believe
I would say the player frame and target frame look like pitbull. I don't use a ton of addons but doing all of those things with aura's would be difficult with anything other then pitbull (maybe shadowed unit frames).
Top bar most likely titan panel
Minimap can be a hundred things
Chat is most likely prat, and combat text
Buffs could be SBF but might not be.
[Today 06:48 PM] Ion:swimming in a natural body of water ISN'T acceptable...it's momentarily tolerable