Though agi/int being better than str is rare, but in this tier, quite a few of atleaset my own BiS list includes agi and int items.
@Haxx and trinkets.
It depends. As you said, the shado-pan dps trinket is better than the tank one.
You simply have to look at the stats. If you are gearing up a new spec, get the ghost iron dragonling trinket (quotes and jokes incoming).
It is stronger than every other trinket until atleast 522 ilvl, stamina trinkets excluded (hard to compare stamina and stat trinkets).
So getting that ghost iron dragonling should be your first step if you haven't got it already.