Armor
How productive do really plan to be if you cant protect yourself? Those mobs out there wont wait for you to regenerate your hit points. Armor can be invaluable to experience points and time (running back to get your corpse). Make sure you are properly protected.
Leather Chain Plate
Masks
Helmets
Ear
Rings
Gorgets
Breast
Back
Shoulders
Arms
Wrists (Bracers)
Hands (Gauntlets)
Belts
Fingers
Legs
Feet
Magical