Top right, to the side of the minimap... It has an icon for flask, food, and the various major buffs. I assume the various icons light up when you have your raid-required buffs... Which addon is it?
Ok, apparently I cannot link videos yet. Lovely... :P
It's the video of the PTR deathwing attack on stormwind from the front page of MMO champ.
Powa Auras is a nice addon which can also be configured to show if certain buffs are present in particular situtions. The UI suite might be usign that, you can configure Powa to look identical to those buffs in the corner.
Another example: show if raid flask/food buff is missing while in a raid group but can be configured to be ignored if PvP flagged (in a BG raid group).