My advice is to spend your honor by buying the Vindicator's Band of Salvation (with the +heal enchant if you are an enchanter), followed by the Vindicator Mooncloth Slippers with Boar's Speed on them, followed by Vindicator's Mooncloth Cuffs with Major Healing Power and a Steady Talasite. That's about 45k honor right there. Round that out with any blue reputation PVP items you qualify for.
In under two weeks, Arena Season 4 will start. At that point, Season 2 gear will be purchasable with honor points and Season 4 gear will be available. You'll probably want to save honor and arena points until then rather than blow it on inferior gear, but the three items I mentioned above won't need to be replaced anytime soon. You won't replace the ring for PVP at all, you'll just supplement it with a Guardian's Band of Salvation. You won't be able to replace the bracers until you reach a personal arena rating of 1575, or the boots until you hit 1700...and sorry amigo, but until you're in full PVP gear, you won't be hitting 1700 in that comp.
Also, buy a Medallion of the Horde. The epic, if you enjoy playing tons of battlegrounds and can count on earning honor fast, otherwise the perfectly reasonable blue version.