Prot tanks with the right gear can generate a decent (not great, decent) amount of dps without changing much gear (usually just a couple of trinket and ring changes)
Get a +hit trinket
Get +hit or +strength rings
Get a +hit and +expertise neck piece
Get a fel shield spike on your shield.
Get a Gnomeregan Auto-Blocker 600
Get sharpening stones
A +12 stone on a fast weapon (1.5 or 1.6) is a lot of extra damage.
That fel shield spike will up damage as well.
and using the auto-blocker with a good macro that gives you 4 swings every 2 minutes ain't shabby either.
Stance dance around, use your abilities, and you will get good dps. You won't out-pace a rogue, but you'll be solidly in the middle of the pack.
You might go a bit higher with dual wielding, but if you go that route, get a good mod to flip back to your tank set in a hurry if the MT goes down fro some reason. But if you have the shield specialization, a shield with a high block rating, lots of +block gear, and the auto-blocker, you may have a hard time doing significantly more.
For you gear, get your expertise up to at least 26, and your attack as high as possible. Don't worry too much about crit chance and crit raiting, you're not a rogue and you don't play one on TV. You want to get the highest number of hits for white damage as you can. Expertise is important because it stops parries. Parries are bad anyway (they speed up the boss's next attack). But stopping them helps your dps alot.
Edited, Jun 10th 2008 11:07am by kingpatzer