No respect? :O
Get some epics and go to BGs - you will get all the respect you ever needed...
Back to topic
Yes you can tank all non heroic instances in any specc. But you need good group for it .
You can even tank most heroics as any specc (with good tanking gear) but the party must be even better (no PuGs here I am afraid).
Try to get defiance and TM from protection tree for easier tanking. While there get Last Stand as well - it is good for soloing/PvPinf and tanking.
Quote:
I do carry a shield and a 1 handed sword but with an epic 2 hander in my inventory, I'd rather not.
Always tank with 1 her and shiled unless you are overgeared for that instance or much higher level then the instance mobs. To be honest you should have 2 different gear sets - one for DPS/solo and the other for tanking.
PvP set might be a third one.