http://www.wowhead.com/?talent=jbEGqIIIocMzu0o0xcZcxM

This is my Blood tanking specc which i use atm. In just a few epic and rest blue +defence gearing i am OT in VoA and OS. And heriocs are no problem.

The good thing with this specc is that its setup for both 1h and 2h. Atm i dual wild 2xtanking 1handers. You have all the reduced CDs you will need like Death'n'Decay + Death Grip. You have the tanking abilits in the blood tree like perry, less dmg from magic, more armor at lower life, lots of self healing (i also use the fallen champion i belive its called rune on my wepons, the one that heal you (600-1200), procs all the time when you go dual wild) And i added Dancing Rune Weapon just for some extra dps on bosses etc.

Basicly all tress are setup for tanking if specced right on a DK, its just a mather of play style. Like i enjoy all those small heals on my screen that keeps me going slightly longer before i need healing. And Rune tap actualy crit heal me up to 8k

PS: Glypt of Rune Tap will heal your whole party for 10% of their life which is nice aswell.. it makes me save some party healing now and then.