I ran Smeggsy through WoW Heroes, and it was informative.
To get some really quick bang-for-the-buck upgrades, enchant your gear, especially the legs for a good HP bump. You're missing gems and a head enchant, as well. I count 150 stam in missing enchants, one missing gem, and missing belt buckle and it's gem(email Hoostomp and I'll make it for you). If you're a 400 blacksmith, you can socket bracers and gloves, as well.
Then, start working on the "visual" stuff. No matter how good an item is for a green, folks will see that it's "just a green". After that point, anything that goes wrong will be "f-ing tank in greens" stupidness.
Check out the Gear Analysis and Ranking guide at the top of the web site. It's got a ton of into in it, well.
D
Of all of that I am aware hehe. I have fully geared another tank on Ravenholdt. I know what missing and what needed and in time will get all that. Unfortunatly those items are harder for me to come by here as I have no infrastructure here to make money. This took is recently 80 and as most death knights start out has no tradeskillz. I have no other toons on this server. I am swimming in money potential on Ravenholdt but eh oh well.
I will get all that stuff in time but I am not going to spend money I dont have to enchant/gem gear thats going to be replaced in less than a week with new gear.
This was just more a rant on bitchy pugs that expect fully raid geared people or their not happy.