I have 2 friends in my list who are DH Tankers. And man they can tank better than us Monks due to the grenade LOH 3-ways!

Monks depend solely on LOH and low DPS to tank, however regen is another question.

But yes, agreeable that the DH Tank build is workable! One can tank their way all the way to Act 4 and even pawn Diablo himself! However with low DPS, one has to be extra patient....