Post by Aris
not to burst your bubble, but im in SSC/TK and i'll likely never tank illidan. Less likely anyone in content below me currently. Expansion is right around the corner, unless blizz pulls a major delay, which i dont think will happen. So unless you want to take your level 80 warrior back to the then pre-expansion content just for S&G's, you'll probably never tank illidan in the black temple.
As for your spec. Its alright. Imp sunder is pretty much a must have. Imp taunt is pretty useless. But whatever you do, make sure you max imp sunder. Something like this:http://www.wowhead.com/?talent=Li0czZVZ0EtsI0zcxst
imp defensive stance isnt really needed for 5man content. You wont really need it till your in T5 content. And imp revenge is really nice to have in 5man's. Everything except boss's can be stunned.
You really wont be able to tank lvl 70 5mans unless your prot. It can be done, but i wouldnt do it. So places like Shadow Labs, Shattered Halls, Black Morass, and anything in tempest keep will be out of reach.
You only have 1 level to go, getting it as prot in instances wont take long.
You really should already have a set of prot gear. It doesnt need to be a good set, but at least some greens with the right stats on them. You would have a very hard time getting prot gear as an arms warrior in 5man content. Not saying it cant be done, but it definately isnt the easiest road to follow. Theres a lot of good quest reward prot gear available though that you could get while your arms. Just browse through the item filters on wowhead.