is the tanking build of my guild's MT/Guildleader, which seems to work remarkably well. He has Thunderfury/CTS for dual-wielding, as well as a defense skill of 413 without anticipation, when he swaps out the Lifegiving Gem for the Ony Blood Trinket.
Seems to work out pretty (very) well, and initially looking at it, I see no "wasted points" that would be better placed elsewhere.
Our secondary tank uses a standard 31/5/15 and our third tank is using a 0/32/19 build. All of them definitely get the job done, although I must say that I would highly prefer if our secondary tank had Piercing Howl, though not at the cost of, say, Defiance.
EDIT: BTW, I highly suggest using www.wowhead.com/talent over the Blizzard Talent Calculator for stuff like this. Much, much quicker, especially on days when there's server downtime.