Melee - power attack and similar feats

If you know you are fighting against undead, there is a feat that you spend an extra turn attempt any undead you turn are destroyed instead of turned even if they have enough HD to not be destroyed.

There are also feats that allow you to turn other critters, outsiders and elementals and such. if you are healing and not doing alot of turning, Sacred boost is good.

Domain spotinaiaty is a great feat, and depending on your doman you can get something like converting prepared spells to say heal/teleport/implosian....