Since WoW has had some level squishes and stat squishes, everything on wowhead is completely unusable for playing cataclysm. That makes having Atlas Loot installed extremely important. To do this, you need to install Atlas, then Atlas Loot. Both are linked down below.

Keep in mind that this is the 4.3.4 Atlas so there are a few issues when using this in the first patch of Cataclysm. You'll see all of the valor gear under the justice gear. And the crafted pvp gear will appear to be higher level than it actually is. I tried using a 4.1 version of atlas loot but it breaks when you attempt to view things on the 4.3 client.

TESTED AND WORKING!

KNOWN ISSUES: none