I was kinda surprised with such a majority of classes using mana that a mod does not exist to help monitor/maintain mana for longer-duration boss fights. What I envision, and hope someone might be willing to tackle is an extension of the base unit frames that exist out there.
Key Elements to this envisioned mod:
-customizable mana bar representation (size/location/texture etc). Could also include tick marks that are movable based on when your players class needs an indicator at (75% for paladins for when to use the first Divine Plea).
-multiple warnings for when your mana hits %'s outputed to screen (text window/raid warning whatever). This would not simply be one warning, but support the capability for multiple ones.
-cooldown monitor to watch for any mana-restorative cooldown available to the players class (could include; divine plea for paladins, mana pots, mana tide for shaman, etc). This would be a smart timer, indicating that not only is a cooldown finished, but could also include when to use a cooldown. An example of this would be to warn the player that Divine Plea (paladin) cool down is up after its one minute cooldown and/or also when the player hits 75% mana (it restores 25% over 12 seconds).
-textual readout/stats monitoring of gains/losses during encounters. This may be redundant with mods like Recount, however.
The mod seems to be a logical sister-mod to Quartz, which monitors and allows for the manipulation of the cast bar. Thanks