Extremely small and efficient circular HUD saving both screen space and memory.
Left side display of Player Health (inner circle) and Mana/Power/Focus (outer circle)
Right side display of Target's Health (inner circle) and Mana/Power/Focus (outer circle) and Target's Name (above).
Currently no configuration (there are a couple of LUA variables you can change for placement and size of circles), just install and go!
There are a couple of slash commands that might enhance your gaming experience -
"/chud" or "/circlehud" - toggles "show out of combat"
"/rl" - reload's the UI (got tired of constantly typing /console reloadui)
Based on and a continuation of the original AlarmHUDpie (available at wowinterface.com) by lab1702.