Just a couple of tips that Ive picked up while learning/Farming normal mode today. First one is that once you knock all the champions off their horses you get a few seconds to run outside of the instance before they start pounding/aoe'ing your team. I found that when I tried to quickly equip weapons and tank them I was wiping due to having to much to do quickly picking up the mobs, moving out of aoe's, equiping weapons, dropping totems. I found it much easier just to run out of the instance and get all my guys buffed and prepared. Then re-enter the instance to find the 3 mobs waiting over by the wooden gate.
Second tip is an obvious one, but if your MT is a paladin and he gets knocked off his mount and trampled, dont forget you can Divine Shield out of that and go get a fresh mount.
Last tip is already pretty much said in OP but I thought Id just go through the process that I have in my head to make phase 2 of the Black knight go smoothly. As he res up for phase 2 cast Fire elementals, heroism, then spam chain heal with your healer (If you have one), and spamming your normal dps buttons on Black Knight. Magma totems work here also if your elementals are on cooldown. My record is for phase 2 to last about 5 seconds and phase 3 about the same.
Hope this helps someone

P.S. 8 normal clears now and no tank trinket -.- Got 2 shammys the trinket from first boss though so not all bad