This page is an amalgamation of all the Death Knight specs currently viable in PvP. I'll try to keep is as current and complete as I can, but if you ever notice something lacking, just give me a shout in the comments on this page.
Enjoy, and Practice safe Death!
-2h Unholy PvP
-2h Unholy PvP (Updated for 4.0.6)
-2h Frost PvP
-Blood specs coming soon to an Onike's Abyss near you!