simple bars above mobs

[Jahda]

hello all,

I would like to know if someone could tell me what addons deal with bars above mobs heads? I mean some addon that improves Blizz horrific and enormous bars.

What i would need at best would be an addon that allows to remove all informations and graphical stuff that are not exculsively "health". That means a totally minimalistic rectangle, which size and color i can configure.
What by the way would be perfect would be if i could add or replace this bar by an aggro rage. For multitanking it would be cool, as well as for aoe dpsing ^^

I used to know one addon that did that but unfortunately it never was up-to-date, and was using a lot of graphical performance.

Thanks for your help, and c u later !

Jahda