I wouldn't use Taunt right off the bat if i was you. As the fight initiator you are gonna be the one to have aggro at first. Use Taunt when you lose that aggro.
For rotation check out this amazing site:
It's helped me alot.
The info on Noxxic is fairly right. 31/0/10 and the priority.
Alot of tanks have switched to a "thrashless" rotation. I rarely use thrash unless I just have an urge to try and force the proc. I shifted the talent points accordingly to somewhere more useful.
But if you are starting out.... The Noxxic info would be a great place to start.