A very simple addition to the era of Minecraft is the RPG-Hud Mod for Minecraft 1.5.2. This came with the feature to turn your hud into a RPG one.
Features:
- Health bar
- Health value
- Hunger bar
- Hunger value
- Xp bar
- Xp value
- Breath bar
- Breath value
- Displays if specific armor piece is under 50% durability
- Displays if specific armor piece is under 25% durability

Downloads:
Installation:
- Download and install Modloader
- Download RPG-Hud Mod
- Open the minecraft.jar (open %appdata%)
- Copy the files in the RPG-Hud Mod Files folder into it
- Enjoy