DK Tank Spec
So this is one of my later alts that I just came back to - at 78, will be 80 in no time.. With emblems being so easy to get now and gear up (which I will be gearing up for Unholy DPS) - I am in need of a tank spec specifically built around heroic farming (no raiding whatsoever as tank).
On my warrior, it's fairly easy as I am so familiar with it, take out deep wounds... get improved cleaving, improved shouts, no cooldowns since I won't need them in heroics, etc.. but with DK's being able to tank in all specs with so many options I am looking for opinions in options for heroic specific tanking.
I don't care which spec is it, I can get used to anything, just looking for recommendations as to best spec for it and best glyphs to do so.
Thanks in advance!