Also needing some help with my spec..
I just picked up DK tanking about a week ago, I swapped from a warrior since DK's are better at everything >.>.....
I've been playing around and I enjoy frost the most, and this is the spec that I'm currently using.. but I left out the 5 points I was unsure about. Spec

Basically I've been trying to weight the differences between Bladed Armor, 2h Spec, and Morbidity. Being new to DK I'm not really sure of which would be more vital to tanking between Bladed Armor and 2H Spec, but as for Morbidity, I rarely find myself using DnD except on initial pulls (am I tanking poorly? We have no prior DK tanks to which I can compare myself to in my guild), so I don't see the point in tanking 3/3 in that. So should I be speccing 3/5 BA and 2/2 2H Spec? Or should I be relooking my tanking style and take 3/3 Morbidity and use DnD more?

Edit: Just wanted to add that I'm only really tanking Uld 10/25.

Hey guys i am wondering where to put 2 talent points and i hope you could help My build is (Talent Calculator - World of Warcraft) and i am wondering should i put the 2 talents into Two-Handed weapon or Epidemic. Any suggestions? Cheers

Specs are fairly subjective, but I'll give you my opinion on yours.
Trying to pick up UB in Unholy makes you sacrifice too many useful points in Blood for it to be worth it. You're giving up a lot of crit (Subversion, Dark Conviction), a lot of damage on those crits (Might of Mograine), and several talents to significantly increase your damage/threat (Bloody Vengeance, Blood-Gorged), not to mention a large source of RP generation (Scent of Blood) to make sure you are missing as few opportunities for RS's as possible.

Necrosis is nice, BCB isn't bad, UB is good for gathering adds, but if you want to MT, leave the add-tanking to the OT's and focus on talents that boost your single-target tps. Morbidity gives DC's a nice boost, and should be more than sufficient to hold threat on any fight where even as the MT you find yourself needing to pick up a few adds.

Things I would drop altogether are Bloodworms, which you already mentioned, Sudden Doom, which provides too little extra tps for it to be worth the three points, Improved Blood Presence, which provides far too little healing to be worth a two-point investment, and Unholy Command, which you shouldn't really need. Death Rune Mastery is not a bad talent, but as a tank you should be using DS instead of HS, as the healing is now fairly significant, and scales with gear.

Here is a spec I'll be testing to see if I like Rune Tap in Ulduar or not. I skipped it in Naxx/Maly/Sarth because I never felt like it was necessary, but with the more strenuous healing in Ulduar, it might be useful in certain fights.

It was posted sometime back in this thread, but just for clarification, Glyph of IBF still provides a 10% benefit to those at def cap despite how the text reads. I'm able to take my reduction from 44% to 54%. Given the 2 min cooldowns of the three main tree talents, I like it better than Glyph of Unbreakable Armor (though I still use both).

Briefly:

As unholy - you are missing both of the talents that boost SS damage (Vicious Strikes, Outbreak). SS is your bread and butter attack...

Your glyphs are uncommon for an unholy build - which makes me wonder what rotation you use...

Your gear looks ok - but I would get a better sigil.

As to blood - it is more gear dependent - so you will need some upgrades to see blood really shine.

I can't see your rotations (obviously) - but rotation information is easy to find here on EJ. Check Suno's thread for the basic rotations.

Hope that helps.

Peering over your spec/gear, you are over hitcap by a few points, but your expertise is low. The +str gems should be swapped with +dodge or +expertise gems if you're low there. Get an [Inevitable Defeat] ASAP.

Ravenous Dead is a better threat talent than Virulence is. Outbreak and Dirge top Necrosis IMO, Dirge for more RP to spam rune strike with and Outbreak boosting SS damage. Rune strike and scourge strike are a lot of your boss threat and are essential components. AOE threat shouldn't generally be much of an issue with unholy. Impurity is also questionable, maybe in Naxx but once getting into Ulduar the additional magic mitigation talents become important.

Unholy isn't my preferred tanking tree (never enjoyed the playstyle as much is all) but I'd probably go with Talent Calculator - World of Warcraft myself. IIT can be ditched for more tps talents like dark conviction, vicious strikes or impurity if another DK or warrior is bringing the same debuff to the raid. With dirge and glyph of SS you will likely not have any issues with RP generation.

If AOE threat is your concern, then you need to figure out your role in your raid. If you're an add/trash tank, then more points in AOE talents like wandering plague or the like are warranted. If you're a boss tank, then more in necrosis/BCB/single-target tps talents.

Your DPS isn't a concern so much as your TPS. If you're doing 1400-1600 DPS, that's acceptable for a tank on single targets, but it's where the damage comes from that's the concern as some talents generate more threat than others.

My spec has changed a few times in the past days so my glyphs arent correct for unholy. with my blood build my rotation was DnD>IT>PS>Pest>HS>HS>OB>OB>HS>HS>OB>OB with refreshing diseses with pest,

I am a OT for my raid and adds are my primary target i have no trouble on single targets it adds and multiple targets that im having trouble with. i think that for my roll wondering plague would be necessary what 3 points do you think i could free up to spec into that or even 2.

thx for your help

My take on unholy AOE tanking: It is just so good by default that it does not need buffing through talents/glyphs. I've yet to encounter AOE tanking situation where unglyphed DnD (3/3 Morbidity ofc), UB, diseases + BB spam do not do the job. In Naxx 10/25 trash my DPS is always quite near the top so AOE threat has always been non-issue even though I have not buffed it at all through talents/glyphs. So my unholy tank spec/glyphs are selected based on MT role and thus I'm glyphing SS/RS/BS and have points in Necrosis to further beef the rather crit-happy RS (RS is naturally macroed to all my strikes) Vicious Strikes/Outbreak are no-brainers. Having Death's Bite and Sigil of Awareness help too and actually makes my ~2.2k single target dps quite nice addition to group dps in 10-man groups. While it takes a few GCDs to get threat single-target really rolling as unholy tank, after the first IT - PS - BS - BS - SS rotation the RS's are rolling nicely and threat is non-issue even when there are DPS'ers doing nearly 5k dps in the group. I often pop Blood Fury and ERW to further beef the aggro on initial boss pull.

Using other of my dual-specs for DPS/PVP build I need to use a single spec for tanking and what's described above has worked quite perfectly as jack-of-all-traces tank build so far. Some people may think my perma-pet is quite out of line for tanking, but there are situations where ~16k instant self-heal, 3 sec stun and shorter-cooldown AotD (as dama-reduction panic button) are handy, especially when pugging as healers are sometimes less than perfect.

Pets have their own threat - so it doesn't add or subtract from yours. If you are new to tanking though, you may want to dismiss him as you will have other things to concentrate on (instead of managing a pet).

I swapped out some of my Single Target talents for more AoE talents and saw a major shift in my TpS. My unholy build rotation was flawed by not using BB enough to make up for no Dmg on Pest. Thank You for answering my questions and hope this might have helped someone else as well.

Ravenous Dead is to increase your Ghoul's damage/survivability. If you don't have a ghoul, it's not better than many other dps talents.