Death Knight Tanking Macro

Frozen Will

#showtooltip Lichborne
/cast Lichborne
/cast Unbreakable Armor
/cast Icebound Fortitude

Specific for Frost tanking. Since none of these abilities are on the global cooldown, binding them on the same key makes for a really effective "oh crap" button. Pressing it with all cooldowns fresh will pop all three abilities (get the Icebound Fortitude and Unbreakable Armor Glyphs for best results) at the same time, granting you with approximately 85% damage reduction.

As a dwarf you can add stone form to your macro witch increases armor by 10%

#showtooltip Lichborne
/cast Lichborne
/cast Unbreakable Armor
/cast Icebound Fortitude
/cast Stoneform

One Button Taunt

/castsequence reset=35 Death Grip, Dark Command

One button for taunting. Starts with the standard Death Knight pulling ability; Death Grip. Afterwards, if during the fight, a mob needs taunting, it will cast Dark Command. For Unholy spec, change the reset time to 25 if 2 points are spent in Unholy Command.