is there an avoidance cap for dodge and parry? i wasnt able to find it through all of this, most likely i just missed it.

You can Dodge, Parry or be Missed, so against an equal level mob you can simply add up your character sheet Dodge, Parry and Miss (5% unless you fancy race-changing to Night Elf in which case it would be 7%).

Note, however, that most mobs of interest (including all raid bosses) you fight naturally suppress some of each of these through being higher level than you.

I presume that the supression through level is that same as that under the old Weapon Skill/Defense scheme for higher level attackers, i.e. 0.2% off each avoidance type per level of difference.

So, for a raid boss your total avoidance is: (Dodge Chance - 0.6) + (Parry Chance - 0.6) + (5% Miss - 0.6), or more simply: Dodge% + Parry% + 3.2%.

P.s. What Charybdis says about the Dodge and Parry caps is perfectly true, but as it's impossible to get anywhere near this level of either Dodge or Parry in current (or likely future) gearing, it's unlikely to worth worrying about too much! It's also not possible to reach 100% combined avoidance through gearing or buffs (as it was with the old Lichborne for example), so really the simplest answer is: you can't cap out avoidance, even though it's theoretically possible.

Zerosven @ Uldaman - Game - World of Warcraft

If you currently see tanking gear on this its because I wanted to see what my gear score was according to blizzard as far as tanking. When I log on tonight I will log out with dps gear on. But on that note can anyone else make any suggestions for my current tank gear? What should I gem/enchant for if I wanted to tank, so far my guildies have been informing me to get lots of mastery for DS shield and maintain a balance for my dodge and parry. Any suggestions would be helpful.

Yeah with DW frost if you proc KM your threat will spike at times. When I was DW frost on my DK i would pull aggro with my opening attacks often even when I am attacking there target. This was caused by KM procs early. My opening is usually Outbreak followed by 3 Obliterates. At least one usually crits sometime more. When that does at the start of a pull the tank usually doesn't have enough threat on it. There are a few things you can try.

1. Try giving the tank a few seconds 3-5 maybe more to generate some threat before you open. But remember if you get back to back KM procs you can still pull aggro as you will be doing major burst.

2. You can try an 2H unholy spec. The damage out put is a bit lower but there won't be any major spikes in threat normally. (Raids are different story)

3. Also try attacking the target the tank is attacking. Remember that frost has high burst damage. Easy to get 40K+ crits.