This mod needs NO 3rd party requirements.
Here:
http://tesalliance.org/forums/index.php?/files/file/1014-duke-patricks-health-alarm-and-red-death-screen/
This is actually an old mod (one of my first) so it will not need OBSE. Rev 2 is updated only by changing a script name from a number to a word as is know to be best to do theses days.
Health Alarm for more immersive play. This will let you keep your eyes on the combat not the status bars! At 50 percent health the screen will turn transparent red for 1 second. Then at 30 percent the screen will turn transparent red until you bring your health back up over 30 percent.
There are Two esp files. ONLY USE ONE OF THEM!
Red Death will completely turn the screen red when the player dies
Red Death with heart beat will completely turn the screen red when the player dies and has the heat beat sound effect.
For the most advanced SCA combat with sword and shield:
http://www.spookyfx.com/book/tromp.html