Please, once you've decided on a spec for your warrior, post it up here. This will help our raid leader a ton in lining up the warrior groups for the raids.... putting those with more protection/higher gear up front for tanking positions while trying to keep those dmg builds doing damage as much as possible during the fight.
This helps keep our raids as smooth and effective as possible. I'd also suggest other classes open similar forums for their classes to post up in. It helps to know who's healing vs dps spec'd for our druids, pallies, and priests, and there's other things for other classes like auras, etc.
For naysayers, which tends to come up in topics like these, this isn't about telling people which route to go... pick what you like guys... this is just about knowing what each person picks to be able to best utilize their talents.
No matter what you pick in any classes, there are times you will be needed to perform tasks in raids that don't necessarily coincide with the way you're spec'd in your class or what you'd like to be doing. There are times we need all the healing we can get, there are times where some protection warriors might not have anything to tank, there are times where dmg warriors will have to tank... there are bosses immune to fire dmg (fire mages and warlocks will have to dps using other methods), there are bosses immune to frost dmg... there are all types of situations that will result in needing to change things about the way we play our characters no matter what we like in order to get past a certain obstacle. This is something we can't get around, but usually does not require certain specs though they may be helpful in that situation... they may at the same time be detrimental in other situations. :P
This is why we always say choose what you like.


