Umm, even after looking at both specs I really don't have a lot to say. Pretty much spot on. I will ask this though, when do you find that your Frost spec out does your Unholy?
Anyhow, here is mine.
http://www.wowarmory.com/character-sheet.xml?r=Blackwater+Raiders&cn=Delk
I know it needs some work, adjusting it after reset as I haven't played in a month or so. My question is, as a tank is Unholy viable in ICC or should I swap to Frost/Blood?