it's not like there are many choices for plate dps....
non heroic BiS arms list just for you:
weapon: gurthalak 403 (390 is better than 397 weapons)
ranged: valor thrown weapon
4pc t13 + 403 spine shoulders
boots: treads of crushed flesh from warlord zon'ozz (valor is fine until you get those)
bracers: crafted blacksmithing bracers or get 410 morchok heroic bracers cuz heroic morchok is basically a normal mode boss
neck: valor neck
ring 1: valor ring
ring 2: curled twilight claw (ultraxion) OR you can use heroic alysrazor band from FL since it has the most strength....or just stick with FL rep 391 ring, it's all negligible in terms of DPS. 397 breathstealer band is poorly itemized for arms compared to the others.
trinket 1: eye of unmaking any ilvl
trinket 2: creche of the final dragon or bone link fetish depending on fight, or 397 ragnaros trinket
belt: valor belt
cloak: valor cloak