[Lhyrra]

You really should not be having to many issues with Mana. Due to the fact that you are Melee, I am assuming you are using the aura's but I assume you are using Knives, possibly traps etc. No doubt calculated strike as well,

What I would do is work with all armor for a warrior class. Rings and Amuletd will fire you up with energy regen.

Essence of Hecate will also benefit you here when applied to jewelery.

Last suggestion would be DC at about 3 points. The speed in which it returns mana, and the rate at which you lose HP can be countered with one Health potion. At 3 points DC gives a speedy return.