Okay, enough with the shenanigans, this is my first day off in our new apartment, and I'm savoring the moments. Mmm, delicious. Kate's gotten the place nicely organized and everything's sorted out now. She cooks much better than she thinks, she just needs to be left no viable alternatives.
Now, on to Death Knight tanking. I've tanked in 10- and 25-man Naxxramas as well as countless 5-mans, and here are my thoughts. Before the patch, Death Knights did indeed take too much damage tanking, you had to rotate your cooldowns very sparingly as Frost (Unbreakable Armor, Icebound Fortitude, Lichborne, etc.) in order to survive some of the more brutal fights. Now, however, we take much less damage, and there can be much more variety in the type of tank that one wants to be.
First, Blood. Very good if you have an absent-minded healer, as between Improved Rune Tap, Vampiric Blood and Bloodworms, you can heal yourself of a lot of the damage, but not particularly sturdy in any way.
Second, Frost. Lots of cooldowns, longer Icebound Fortitude, and a couple good talents (like Frigid Deathplate) would make this an excellent spec for general tanking, if not for one thing: Howling Blast. Buggy as HELL, even though they "removed" the cooldown, it still acts like there's a cooldown on it, and usually even triggers the GCD even if it doesn't cast. So no. Until they fix that thing, I must be separated from my true love.
Third, Unholy. Dunno, haven't really tried it, I'll let you know, cuz I've re-spec'd and am gonna try it out in a couple Heroics today.