53/0/18 PVP/Arena build. Gives you shadow of death and on a pale horse as well as dancing rune weapon. A lot of the early tier stuff is subjective and you may like different skills than what I chose but alot of them change every patch.
http://wotlk.wowhead.com/?talent=jf0GqI0IsbotuNoZfMMI0bo
56/5/10 Blood Tanking build. Again, I haven't done too much tanking at 80 but I like this build for tanking as blood. You get reduced cd on DnD, all of the first tier tank talents, and everything else is pretty much self explanatory.
http://wotlk.wowhead.com/?talent=jcvMVhhIsb0tuAo0xZcg
Frost:
14/50/7 PVE dps. Gives you longer diseases and buffs your crit/ap/obliterate with the blood talents. Pretty straightforward spec.
http://wotlk.wowhead.com/?talent=jfV0mZG0xxIxdRhoV0sxfM
19/51/0 PVP/arena. Not much to say.. I'm not overly happy with this build but it's a decent starter template to get into frost pvp. I'll tweak this one a bit more when I have more time to do arena's as frost.
http://wotlk.wowhead.com/?talent=jf0GqcZMgxzhezMGRhost
10/54/7 Frost Tanking build. Ok so I have a problem doing any kind of pve build without epidemic %26gt;.%26gt;
http://wotlk.wowhead.com/?talent=jcxMZGxxzhedMhoVssx0g
Unholy:
5/11/55 PVP/Arena build. Only gonna do one of these because there are so many variations you could do. Basically you could choose to go for lichborne/black ice or go more blood for imp rune tap.
http://wotlk.wowhead.com/?talent=jfZ0xxzZfMrI0bkxeqofsuz
21/0/50 PVP/Arena ok one more, basically you go for mark of blood in the blood tree and get imp rune tap for maximum survivability.
http://wotlk.wowhead.com/?talent=jfzGqc00oZZfMrI0bkLeqofou
7/10/54 PVE Dps build Not really much to say about it. A few talents are still in flux as to how much dps increase they give and obviously could be moved around.
http://wotlk.wowhead.com/?talent=jf0MZG0xZfM0Ixzkgcq0csut
5/11/55 Unholy Tanking build. Could probably go a few different ways with this one as well. I chose lichborne to get that fear break and another mitigation cooldown.
http://wotlk.wowhead.com/?talent=j0xZ0xxzZfg0cx0ogeoocsut
Offsite Resouces:
Mechanics
http://deathknight.info/wiki/index.php?title=Mechanics
http://wotlkwiki.info/index.php/Death_Knight#tab=Class_Mechanics
Death-Knight FAQ
http://wotlkwiki.info/forum/showthread.php?t=3497
Death knight tanking collection beta version!(I know finally)
http://wotlkwiki.info/forum/showthread.php?t=97
Terminology %26amp; Class Introduction
http://forums.worldofwarcraft.com/thread.html?topicId=9879678979%26amp;sid=2000
Not sure how this one made it in here :)
http://www.gcguild.net/blog/myrx