Things are looking good. Some advice and suggestions thou.
Spec-benediction isn't great. SoComm for heroic trash would be better. And get the minor for sense undead. Its a nice lil undead damage buff. Also, since you are doing heroics, you have 2 taunts, lose the rightous def glyph and put something that will help threat IE...hammer of the rightous which will allow you to hit another target.
Gear-a few rules to live by! NEVER EVER EVER EVER gem parry, only gem def or def/stam til 540 and then go pure stam. Hit rating which you could raise a bit is 8% and soft cap for Expertise is 26, you are a tad high on that, well really high but a new piece of gear or two will change that.
Do WG or a daily bg or two and get yourself the stam/res shoulder enchant.
Throw even the cheap leg enchant on your pants.
mats/bages are easy enough to come by now, get the crafted saronite swordbreakers.
Hope this helps.