[Theanimal]

charge/hammstring macro :

/Cast Hammstring(rank ...)
/Cast Charge(rank...)

intercept/hammstring macro :

/Cast Hammstring(rank...)
/Cast Intercept(rank...)

Heroic/Overpower macro :

/Cast Overpower(rank...)
/Cast Heroic Strike(rank...)

stance macro : (depents on your spec and using stances)

1

/Cast Defensive Stance
/Cast Battle Stance

2

/Cast Battle Stance
/Cast Berseker Stance

3

/Cast Berseker Stance
/Cast Defensive Stance

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in raids i usually use (as a tank) the cange stance macro ofc and

/Cast Mocking Blow(rank...)
/Cast Charge(rank...)

and then stance macro and keep devastating etc
very usefull in immune to taunt mobs like kara mobs

have fun hope it was helpfull

[vince0001]

these are the ones i use for pvp and u may find them a bit more helpful

Switching between shield and 2h'
/equip Merciless Gladiator's Slicer
/equip Vengeful Gladiator's Shield Wall
/equip Vengeful Gladiator's Greatsword

first thing i always do to a target is hamstring so this helps
/cast Hamstring
/startattack

In arena focus targets help a great deal, i use them to know when something is being cast from a target that your not attacking, to interrupt it i use
/cast [target=focus] Intercept(Rank 5)

Intervene macro, to stay close to your healer, and stop him from being blinded,executed etc...
#show Intervene
/cast [nostance:2] Defensive Stance; [help] Intervene; [target=targettarget, help] Intervene

this is the best spell reflect macro i have used, and its eeded for obvious reasons
#show Spell Reflection
/cast [stance:3] Defensive Stance
/cast [equipped:Shields,nostance:3] Spell Reflection
/stopcasting
/stopmacro [equipped:Shields]
/equip Merciless Gladiator's Slicer
/equip Vengeful Gladiator's Shield Wall

taking pressure off your healer, or your self .
#show Disarm
/cast [stance:2] Disarm; Defensive Stance

When not pvping i sometimes tank za, kara etc..

Stance Dancing fears
#show Berserker Rage
/cast [stance:3] Berserker Rage; Berserker Stance
/stopcasting
/cast [noequipped:shields] Battle Stance; Defensive Stance

gain threat while sheild blocking
/cast Shield Block
/stopcasting
/cast Devastate(Rank 3)

..and if taunt resists
# show Mocking Blow
/cast [nostance:1] Battle Stance; Mocking Blow
/cast [nostance:2]Defensive Stance