I think terror's post applies mostly to dealing with trash mobs in dungeons, however when you get to the primals (i.e. Ifrit, Garuda, Titan), you are going to want the optimal enmity generation rotation. So, here is how you do just that...

Heavy Swing->Skull Sunder-> Butcher's Block
Heavy Swing->Skull Sunder-> Butcher's Block
Heavy Swing->Maim->Storm's Eye

...and so forth. At the beginning of the fight, you will want to pop Berserk to get a nice aggro lead. Other than that, try to double up on CDs. What I mean by that is combine Berserk and/or Internal Release with say Bloodbath and/or Inner Beast to received increased heals. Inner Beast should only be used when you have Infuriate off-CD, as this will not cost you your 15% heals and 10% increased critical chance.