Also keep in mind solohunter, that you have to take into account the natural threat boost that being in bear form gives you. All your attacks have extra threat, so even though it may seem as if you aren't hitting very hard, your threat should still be pretty good due to that boost.
As you level you'll definitely want to look for lots of stam
At 70 the formula doesn't change. All Druid tanks start out getting enough def and resil to hit uncrittable, then gemming stam to kara/heroic stats, then gemming/enchanting agility to get their dodge up to that nice 30% starter mark.
If you see a tank running around with Strength gems, then they just aren't tanking right because I don't have a single one and I can easily push 1100-1200 tps on omen on single target pulls. You'll get a crapton of AP also from endgame staves which will help you further with your damage/threat generation.
There are a few nice stickies around about tank threat multipliers if you like to look at the numbers. Me, I just took a look and took their word for it. It's hard to pull off me, so it must be true right? :-)
Edit: Tank = Druid tank
Edited, Jul 4th 2008 1:09pm by Galenmoon