Belt of the Living Thicket, 226, Haste/Spirit, 28 Emblems of Conquest
Belt of Arctic Life, 226, Haste/Spirit with Red and Yellow Sockets, Leatherworking (Runed Orbs)
Those are two options for belts you could very easily get in the interim. Higher than that but before ICC you would need to raid Trial of the Crusader, both 10 and 25 man have several belt options.
You currently aren't using any Idol. Buy the Emblem of Triumph idol at least, Idol of Flaring Growth. That's an unused slot which is additional rating you could have.
You are using a Relentless Gladiator Ring however it is a Hit item which does not benefit restoration. The Wrathful Gladiator's Band of Dominance would provide more benefit to restoration as a Crit/Resilience item instead of a Hit/Resilience item as well as provide additional spellpower. The Wrathful rings do not have an Arena rating requirement either.
"In anything, if you want to go from just a beginner to a pro, you need a montage." /w TankSpot WTB Montage for Raiders.