About the AoE tanking... if you are rolling the bleed spec, then you are going to have a natural dot on all the mobs after your initial TC and SW attacks which can be equated out to being the same as a Pally's consecrate or Dk's DnD
i usual run with a couple different glyphs in my bags (can be costly, but i hate being ineffective), when i run heroics i use the glyphs for Shockwave, Blocking, and Cleave... this allows me to have a tighter rotation for AoE pulls and i never lose aggro.
