I am a fellow THF, and would like to add a few things. I apologize if someone has already said these things, but here it is again if so. Something to keep in mind with your macros, when you use macros that have multiple commands seperated by /wait, if you currently have a slow effect on you, this will ***** it up. For instance, if you use your TA + SA + WS macro, often times what will happen is you will completely skip the SA, because the slow effect is slowing down your characters actions, and the /wait 1 is no longer a sufficient wait time for using the abilities. In these scenerios where my character is slowed, I unlock from the monster, turn around and hit my macro multiple times to asure both abilities have gone off, then turn around and hit the monster.
Another helpful tip, that most of you have probably already figured out...when you are in a party and it is critical that you get that first SATA off ASAP, pull your weapons out lined up behind the tank, but not facing the monster. What I have found is that I line myself up and go to pull out my weapons for the strike, but I am getting cast on, maybe WHM is doing regen on me or a bard has just had a song go off, and because of this my character goes into what I call "lock down". The game proceeds and I pull out my weapons and hit the monster, but I can't move. This creates a problem if at the last minute the monster or the tank shifts, and you need to adjust to make your attack successful. If you are being cast on you can't make that adjustment, however once you have your weapons out and are faced away from the monster, it doesn't matter if you are getting cast on or not, you can make those adjustments to have your attack land. There is my two cents