The other night, I finally got a tank to level 80. That makes 3 80's for me: a mage (mostly hangs out with the other mages in Dalaran now), a shaman, and a feral druid. Class-wise, I can now cover every role needed. Gear-wise... well... now that's a different story. It's probably 2 of 3 roles (both on my Shaman) that I can cover in any instance right now.
Since I leveled a lot from 70 to 80 via the dungeon finder, I had some pretty decent gear. I was sporting all blues (which is probably better than any of my other fresh 80's). So, I'm for sure in the right gear area to start on heroics. But I also recognize that my gear sucks in comparison to the people I get randomly grouped with.
You see, the dungeon finder must compensate for a really badly geared person (probably especially a tank), by putting them with over-geared people. I swear the dps and healers I'm put with are all wearing Tier-12 gear. I let everyone know that I've only run a few heroics so they don't completely bad-mouth me. They're generally pretty nice. They keep me alive. The hunter constantly misdirects, and they even let me tank a mob or two. But the rest of them have about 30k health in their PVE gear, so they tank just as well as I do. So, in a way, I really feel like the tank in the picture. Only that I can move.
After 2 heroics (and the badges I'd saved up), I was able to buy my first T-9 piece of armor (my first epic). It's just such a paradigm shift from the types of tanks that I'm used to running with. Even healing on heroics I generally seemed to get decently geared tanks... usually. I just hope that I'm competent enough to make sure the encounters are successful to the best of my ability. So far, no deaths, but I've also only tanked 2 heroics. (Probably more of an achievement for the healers in my groups since so many other people are taking damage because they pulled aggro off me.)
But it is kind of fun to know that I can run into an instance and get multiple upgrades. It's different than my geared shaman where I'll be lucky if I get an item... I'm usually just counting on the badges to eventually get another piece of T-10. lol.
It's also a lot of fun to see these instances from a different perspective. It really is a different game when you're healing, tanking, and dps'ing. So, it's a lot of fun to change things up a bit. Then again, it also takes me a few heartbeats to heal an instance right after I've just tanked one on the other toon.