Take couple friends ( i run with hunter and pally) and just plow thru ICC 25H and make that legendary quest on a alt or a main if you haven't done it yet. It takes time but it's worth it.
Actually looks really crap on armory but if you don't want to shell out tons for lightbringer (DK is an alt) the frostwolf tabard looks pretty sweet in game, and the cata T1 axe matches quite nicely, but nothing on the Quel Delar 2h sword