well firstly the GAB or Unwavering Legguards - Items - World of Warcraft are a good start if your new badge vendor isn't up yet. I would get the legs first and the GAB second. Why do you want my SBV and what is it? Are you having trouble building threat or just want to mitigate more damage though blocks?
You may also want to consider getting Crimson Girdle of the Indomitable - Items - World of Warcraft from moroes in karazhan