I've started up my DK's again.

I'm basically using: http://www.dual-boxing.com/showthread.php?t=37658
Except that I'm prioritizing Mastery > Haste.
I've also taken Blood Strike out of the rotation, as Frost doesn't need to spend Blood Runes anymore.
And will be going with two one-handers, instead of the 2-hander once I I've earnt the minimum 7,250 honor this season and have sufficient honor to buy both weapons (no point in dual-wielding one weapon).

I'll likely switch my talents to: http://www.wowhead.com/talent#jfZGIorfzRdfzb
Don't need the Strangulate, now that I'm not doing arena and am only playing in BG's.
Chances are the extra point in dual-wield (tier 1) will outweigh the 1/2 rating in On a Pale Horse.